Data Sheet for Product

9
Siemens
CM2N4658en
Smart Infrastructure
2021-10-26
Communication GMA161.9E/MO
Communication protocol
Modbus RTU
RS-485, not galvanically isolated
Number of nodes
Max. 32
Address range
1…248 / 255
Factory setting
255
Transmission formats
1-8-E-1 / 1-8-O-1 / 1-8-N-1 / 1-8-N-2
Factory setting
1-8-E-1
Baud rates (kbaud)
Auto / 9.6 / 19.2 / 38.4 / 57.6 / 76.8 / 115.2
Factory setting
Auto
Bus termination
120 Ω electronically switchable
Factory setting
Off
Outputs GMA1..9E..
Output signal
Output voltage U
(Wires 9-2)
DC 0…10 V =
Max. output current
DC ± 1 mA
Connection cables
Cable length
0.9 m
Cable cross-section
0.75 mm
2
Ambient conditions and protection classification
Device IP class per EN 60730
AC 24 V ~ / DC 24 V =
III
AC 230 V ~
II
Degree of protection of housing to EN 60529
IP54
Operation
As per IEC 60721-3-3
Climatic conditions
Class 2K3
Temperature (extended)
-32...55 °C
Humidity (non-condensing)
<95 % r.h.
Transportation
Transport per IEC 60721-3-2
Climatic conditions
Class 3K5 / Class 2K3
Temperature (extended)
-32...70 °C
Humidity (non-condensing)
<95 % r.h.
Storage
Per IEC 60721-3-1
Climatic conditions
Class 1K3