Data Flow Systems TCU800, Инструкция по установке и эксплуатации

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M o d b u s S u p p o r t
Configuring Modbus Device ID
The valid device ID range for the TCU is 1-250.
TCU Radio System Setup
Radio communication requires that the TCU be installed in a location, preferably a control panel, with access to an antenna.
This illustration provides details on grounding a TCU that is installed in a control panel. Refer to the documentation for
your radio and antenna system for details on wiring and installing those parts of your system.
Figure 5
Querying the TCU
When communicating with the TCU via Modbus radio or as a Modbus slave device via the RS-232 port, you must query
the TCU using the equivalent Modbus register.
The TCU supports the following Modbus functions on its RS-232 serial slave port:
01 Read Coil Status (read digital control registers 1-9999)
02 Read Input Status (read digital status registers 10001-19999)
03 Read Holding Registers (read analog control registers 40001-49999)
04 Read Input Registers (read analog input registers 30001-39999)
05 Force Single Coil (control single control register)
06 Preset Single Register (control single analog control register)