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Communication module CM 1243-5 for connection of SIMATIC
S7-1200 to
PROFIBUS as DP Master module; PG/OP communication; S7 communication
Transfer rate
Transfer rate
● at the 1st interface / acc. to
PROFIBUS 9.6 kbit/s … 12 Mbit/s
Interfaces
Number of interfaces / acc. to Industrial Ethernet 0
Number of electrical connections
● at the 1st interface / acc. to
PROFIBUS 1
● for power supply 1
Type of electrical connection
● at the 1st interface / acc. to
PROFIBUS 9-pin Sub-D socket (RS485)
● for power supply 3-pole terminal block
Supply voltage, current consumption, power loss
Type of voltage / of the supply voltage DC
Supply voltage / external 24 V
Supply voltage / external / at DC / Rated value 24 V
Relative positive tolerance / at DC / at 24 V 20 %
Relative negative tolerance / at DC / at 24 V 20 %
Consumed current
● from external supply voltage / at DC / at 24 V / typical 0.1 A
Power loss [W] 2.4 W
Ambient conditions
Ambient temperature
● for vertical installation / during operation 0 … 45 °C
● for horizontally arranged busbars / during operation 0 … 55 °C
● during storage -40 … +70 °C
● during transport -40 … +70 °C
Relative humidity
● at 25 °C / without condensation / during operation / maximum 95 %
Protection class IP IP20
Design, dimensions and weights
Module format Compact module
S7-1200 single width
Width 30 mm
Height 100 mm
Depth 75 mm
Net weight 0.134 kg
Mounting type
● 35 mm DIN rail mounting Yes
● S7-300 rail mounting No
● wall mounting Yes
Product features, product functions, product components / general
Number of units
● per CPU / maximum 3
Service / as DP master
● DPV1 Yes
Number of DP slaves
● on DP master / usable 32
Amount of data
● of the address area of the inputs / as DP master / total 512 byte
● of the address area of the outputs / as DP master / total 512 byte
● of the address area of the inputs / per DP slave 244 byte
● of the address area of the outputs / per DP slave 244 byte
● of the address area of the diagnostic data / per DP slave 240 byte
Service / as DP slave
● DPV0 No
● DPV1 No
Performance data / S7 communication
Number of possible connections / for S7 communication
● maximum 8; max. 4 connections to other S7 stations
● with PG connections / maximum 1
● with PG/OP connections / maximum 3
Performance data / multi-protocol mode
Number of active connections / with multi-protocol mode
● without DP / maximum 8
● with DP / maximum 8
Performance data / telecontrol
Protocol / is supported
● TCP/IP No
Product functions / management, configuration, engineering
Configuration software
● required STEP 7 Basic/Professional
Further information / Internet-Links
Internet-Link
● to website: Selector SIMATIC NET SELECTION TOOL http://www.siemens.com/snst
● to website: Industrial communication http://www.siemens.com/simatic-net
● to website: Industry Mall https://mall.industry.siemens.com
● to website: Information and Download Center http://www.siemens.com/industry/infocenter
● to website: Image database http://automation.siemens.com/bilddb
● to website: CAx Download Manager http://www.siemens.com/cax
● to website: Industry Online Support https://support.industry.siemens.com
Security information
Security information Siemens provides products and solutions with industrial security functions that support the secure operation of plants, solutions, machines, equipment and/or networks. They are important components in a holistic industrial security concept. With this in mind, Siemens’ products and solutions undergo continuous development. Siemens recommends strongly that you regularly check for product updates. For the secure operation of Siemens products and solutions, it is necessary to take suitable preventive action(e.g. cell protection concept) and integrate each component into a holistic, state-of-the-art industrial security concept. Third-party products that may be in use should also be considered. For more information about industrial security, visit http://www.siemens.com/industrialsecurity. To stay informed about product updates as they occur, sign up for a product-specific newsletter. For more information, visit http://support.automation.siemens.com. (V3.4)
last modified: 06/10/2020
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