Omron NV3Q Series, Руководство по подключению

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Modbus (RTU Mode | Temperature Controller)
Section 10-3
Communications Settings The following communications settings are recommended for the PT and
Temperature Controller.
■ PT Communications Settings
Note When connecting to OMRON EJ1 Temperature Controllers using Modbus-
RTU, set a transmission delay of at least 5 ms in the communications parame-
ters in the NV Configuration of the PT. Communications may not be performed
correctly if a transmission delay of 4 ms or less is set. Use a value of the least
5 ms (default) for the port B send wait time in the EJ1. Communications may
not be performed correctly if a send wait time of 4 ms or less is set.
■ Temperature Controller Communications Settings
Note Using PLCs from Other Manufacturers
Always confirm operation on the actual PLC that you intend to use.
For the NV Configuration when connected to an EJ1 Temperature Controller,
refer to the information on connecting to the EJ1 with Modbus-RTU in the
NV-
series Setup Manual (Cat. No. V103).
Item Setting Comments
PLC station number 1 When specifying connections to
more than one PLC, make the set-
tings for each device.
Baud rate 19,200 bps
Data length 8
Stop bits 1 Always 1 bit.
Parity Odd or Even
Transmission delay 5 ms For RS-232C communications,
0 ms can also be set. Set the
delay according to the device.
Item Setting Comments
Slave address 1
Mode RTU mode
Baud rate 19,200 bps
Data length 8
Stop bits 1
Parity Odd or Even