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9.2.2.5 COM16 module
The COM16 communication module permits access to the circuit breaker via the Modbus RTU fieldbus interface.
Overview
(1) Connection terminals for additional inputs and outputs to provide special functions
(2) SUB-D plug, 9-pole, for Modbus RTU connection
(3) cLED
(4) Modbus RTU LED
(5) Connecting cables to secondary connector X8
(6) c connection for connecting external c
modules or for the terminating resistor
Installation and operation
Assembly is done as for the COM35 module:
for the guide frame
→
(page 9-60)
for fixed-mounted breakers
→
(page 9-62)
Installation and operating is described in the system handbook with document order number 3ZX1012-0WL10-1AC1.
It can be downloaded free of charge from:
http://support.automation.siemens.com/WW/view/en/39850157
Indicators
LED Indication Significance
PROFIBUS
DP
off No 24v dc power connected
green
Modbus communication functioning
red No Modbus communication or timeout
c
off
No c-modules found or
no 24v dc power connected
green c communication active
green
flashing
cdevice found, but no
connection to ETU or metering function
red c error
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