Bitzer CM-RC01 Instructions D'installation page 34

6 Device connection
Some BITZER devices can be connected via Modbus or BEST protocol (in the same connection), for others only
Modbus is available. The BEST connection may be preferable because communication is faster and all parameters
can be addressed. However, some devices only have a Modbus connection, and if various devices are mixed in an
installation with one gateway, only Modbus is possible as well.
BITZER product Modbus pro-
tocol
IQ MODULE available
(CM-RC-01, CM-
RC-02, CM-
SW-01)
SE-i1 available
CSV. available
VARIPACK available
ECOLITE available
ECOSTAR available
Tab. 3: Modbus and BEST protocols for BITZER electronic products
Use the following parameters for Modbus communication:
Baud rate 19 200 bps
Parity even
Stop bits 1 stop bit
Tab. 4: Supported Modbus parameters
Please also make sure that the IQ product has the latest firmware version installed. Supported firmware versions:
• IQ MODULE CM-RC-02: all
• IQ MODULE CM-RC-01: from 2.10.272.00
• IQ MODULE CM-SW-01: from 2.9.92.00
• SE-i1: from 2.4.117.00
• CSV: from 1.92
CT-311-5 // PDF Download
BEST protocol
available
available
available
not available
not available
not available
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