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3.2.6 MODBUS Slave Function
Control a channel directly via the serial port using the MODBUS
protocol. The Relay Driver communicates with a PC or other device
using MODBUS commands over the serial port to turn a channel ON
or OFF. By writing a register value (coil command), the output state of a
channel can be specified. More information about the MODBUS
protocol can be found at:
Relay Driver variables (channel voltages, temperature) can be read
from holding registers via MODBUS. Channel voltages can be read
from any channel regardless of the control function assigned. To
control a channel using MODBUS however, the channel must be
configured as MODBUS Slave.
Common Applications
Control relays over a serial line or network
Monitor voltage signals and Relay Driver temperature remotely over a
network
For more details about using the MODBUS protocol to communicate
with the Relay Driver, refer to the Relay Driver Modbus Specification
document on our website at:
37 |
P a g e
http://www.modbus.org/
http://www.morningstarcorp.com/products/
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