Installation Guidelines - Siemens SIMATIC S7-1500 Manual
Cm ptp rs422/485 ba communication module
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Also See for SIMATIC S7-1500:
- System manual (523 pages) ,
- Function manual (402 pages) ,
- Manual (188 pages)
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Connecting
3.2 Installation guidelines
Connecting cables
Standard connecting cables of various lengths (see chapter Accessories (Page 11)) are
available for connection with a communication partner which also has a 15-pin sub-D female
connector.
Please note that you must only use shielded connector casings and cables. A large surface
area of the cable shield must be in contact with the connector casing on both sides.
Cable shield - GND
Never connect the cable shield to the GND, as this could destroy the modules. GND (pin 8)
must always be connected on both sides, as this could otherwise also destroy the modules.
3.2
Installation guidelines
To take into consideration
The general installation guidelines must be taken into consideration (see function manual
EMC/EMI compatible installation of control systems
(http://support.automation.siemens.com/WW/view/en/59193566)).
The cable shield must be installed on a grounding rail to maintain the EMC values
(electromagnetic compatibility).
16
CAUTION
CM PtP RS422/485 BA communication module (6ES7540‑1AB00‑0AA0)
Manual, 01/2013, A5E03777484-01
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