Yamatake Azbil CMQ-V Series, User Manual

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Chapter 1. OUTLINE
If the optional model is provided with the RS-485 communications function, communication with a PC, PLC or
other host devices are available using a user-configured program.
The communication protocol can be selected from the Controller Peripheral Link (CPL) communications
(Yamatake's host communication protocol). This chapter describes the CPL communications.
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Features
The features of the CMQ-V 's communications function are as follows:
• Up to 31 units can be connected to a single master station as a host device.
• When the communication specifications of the host device conform to the RS-
232C interface, the communication converter CMC10L (sold separately) is
required. The CMC10L allows the conversion between RS-232C and RS-485.
• Almost all of the device parameters can be communicated.
For details on communication parameters, refer to;
Chapter 5, COMMUNICATION DATA TABLE .
1
RS-485 connection example
Slave station
(CMQ-V series, etc)
Master station
Connection between master station and slave station
RS-232C
RS-485 (3-wire system)
RS-232C/RS-485 converter