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General information
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Product type designation
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CM PtP RS232 BA
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CM PtP RS232 HF
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CM PtP RS422/485 BA
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CM PtP RS422/485 HF
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Product function
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Yes; I&M 0
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Yes; I&M 0
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Yes; I&M 0
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Yes; I&M 0
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Engineering with
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V12 / V12
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V12 / V12
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V12 / V12
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V12 / V12
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V5.5 SP2 with GSD file
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V5.5 SP2 with GSD file
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V5.5 SP2 with GSD file
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V5.5 SP2 with GSD file
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- / -
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- / -
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- / -
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- / -
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V2.3
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V2.3 / -
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V2.3
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V2.3 / -
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Installation type/mounting
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Rail mounting
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Yes; S7-1500 mounting rail
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Yes; S7-1500 mounting rail
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Yes; S7-1500 mounting rail
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Yes; S7-1500 mounting rail
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Supply voltage
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Type of supply voltage
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system power supply
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system power supply
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system power supply
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system power supply
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Input current
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Current consumption (rated value)
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35 mA; From the backplane bus
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35 mA; From the backplane bus
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33 mA; From the backplane bus
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33 mA; From the backplane bus
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Power
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Power available from the backplane bus
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0.65 W
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0.65 W
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0.65 W
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0.65 W
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Power loss
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Power loss, typ.
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0.6 W
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0.6 W
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0.6 W
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0.6 W
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Address area
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Occupied address area
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8 byte
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8 byte
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8 byte
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8 byte
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Interface types
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RS 232
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19.2 kbit/s
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115.2 kbit/s
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15 m
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15 m
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RTS, CTS, DTR, DSR, RI, DCD
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RTS, CTS, DTR, DSR, RI, DCD
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RS 485
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19.2 kbit/s
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115.2 kbit/s
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1 200 m
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1 200 m
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RS 422
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19.2 kbit/s
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115.2 kbit/s
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1 200 m
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1 200 m
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Yes
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Yes
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No
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No
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Integrated protocols
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Freeport
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1 kbyte
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4 kbyte
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1 kbyte
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4 kbyte
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7 or 8
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7 or 8
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7 or 8
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7 or 8
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1 or 2 bit
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1 or 2 bit
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1 or 2 bit
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1 or 2 bit
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None, even, odd, always 1, always 0, any
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None, even, odd, always 1, always 0, any
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None, even, odd, always 1, always 0, any
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None, even, odd, always 1, always 0, any
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3964 (R)
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1 kbyte
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4 kbyte
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1 kbyte
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4 kbyte
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7 or 8
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7 or 8
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7 or 8
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7 or 8
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1 or 2 bit
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1 or 2 bit
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1 or 2 bit
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1 or 2 bit
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None, even, odd, always 1, always 0, any
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None, even, odd, always 1, always 0, any
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None, even, odd, always 1, always 0, any
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None, even, odd, always 1, always 0, any
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Modbus RTU master
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1 to 247, extended 1 to 65535
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1 to 247, extended 1 to 65535
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1
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32
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MODBUS RTU slave
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1 to 247, extended 1 to 65535
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1 to 247, extended 1 to 65535
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Telegram buffer
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2 kbyte
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8 kbyte
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2 kbyte
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8 kbyte
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255
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255
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255
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255
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Interrupts/diagnostics/status information
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Diagnostics function
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Yes
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Yes
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Yes
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Yes
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Alarms
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Yes
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Yes
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Yes
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Yes
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No
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No
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No
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No
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Diagnostic messages
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Yes
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Yes
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Yes
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Yes
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Diagnostics indication LED
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Yes; Green LED
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Yes; Green LED
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Yes; Green LED
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Yes; Green LED
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Yes; Red LED
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Yes; Red LED
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Yes; Red LED
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Yes; Red LED
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Yes; yellow LED
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Yes; yellow LED
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Yes; yellow LED
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Yes; yellow LED
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Yes; yellow LED
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Yes; yellow LED
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Yes; yellow LED
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Yes; yellow LED
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Potential separation
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between backplane bus and interface
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Yes
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Yes
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Yes
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Yes
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Isolation
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Isolation tested with
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707 V DC (type test)
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707 V DC (type test)
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707 V DC (type test)
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707 V DC (type test)
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Ambient conditions
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Ambient temperature during operation
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0 �C
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0 �C
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0 �C
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0 �C
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60 �C
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60 �C
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60 �C
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60 �C
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0 �C
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0 �C
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0 �C
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0 �C
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40 �C
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40 �C
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40 �C
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40 �C
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Decentralized operation
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to SIMATIC S7-300
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Yes
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Yes
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Yes
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Yes
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to SIMATIC S7-400
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Yes
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Yes
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Yes
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Yes
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to SIMATIC S7-1500
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Yes
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Yes
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Yes
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Yes
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to standard PROFINET controller
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Yes
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Yes
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Yes
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Yes
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Fast Startup supported
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Yes
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Yes
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Yes
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Yes
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Dimensions
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Width
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35 mm
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35 mm
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35 mm
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35 mm
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Height
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147 mm
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147 mm
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147 mm
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147 mm
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Depth
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127 mm
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127 mm
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127 mm
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127 mm
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Weights
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Weight, approx.
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0.22 kg
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0.22 kg
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0.22 kg
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0.22 kg
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