Data Sheet for Product
14
Siemens CB1Q3230en
Smart Infrastructure 2020-04-08
Modbus (RS-485, RTU)
A+, B-, REF
RS-485 (EIA 485) Modbus RTU mode
2-wire twisted pair (shielded)
Bus connection A+, B-, REF
Bus electronics Not galvanically separated
Bus cable Shielded if length > 3m , twisted pair
Bus termination (switched via software) 680 Ω / 120 Ω +1 nF / 680 Ω
Modbus connection
Communication module interface
● Connection via plug at bottom left of the controller.
● Based on SPI interface for the communication module connection.
Number of COM modules Max. 3 (self-acting module detection)
Power supply DC 5 V ±10% / max. 1A (short-circuit-proof)
Board-to-board (not included) ZEC1.0/10-LPV-3.5 GY35AUC2CI1
Local HMI interface (T-HI)
Connection RJ45 jack (8 pins)
Cable (< 3 m) ● Use USB cable POL0C2 for tools
● HMI cable included in POL895.51
HMI communication RS-485
HMI power supply 24 V max. 100 mA
Bus termination (fix) 680 Ω / 120 Ω +1 nF / 680 Ω
3
9
0
3
Z
0
3