Data Communication Using Bidirectional Protocol - Mitsubishi Electric MELSEC iQ-R Series User Manual

16.6

Data Communication Using Bidirectional Protocol

This section shows examples of data communication using the bidirectional protocol when the settings/registrations are made
with Engineering tool.
Parameter settings
For details for each setting item, refer to "Parameter". (Page 422 PARAMETER SETTING)
Setting item
Basic Various control
settings specification
16 TRANSPARENT CODES AND ADDITIONAL CODES
342
16.6 Data Communication Using Bidirectional Protocol
Test mode setting
Communication protocol setting
Communication speed setting
Transmission setting
Station number setting (CH1, 2 in common: 0 to 31)
Transparent code designation_Transparent code
for sending specification (1st)
Transparent code designation_Transparent code
for sending specification (2nd)
Transparent code designation_Transparent code
for receiving specification
Setting content
CH1

Bidirectional protocol
19200 bps
Operation setting Set according to the
target device
Data bit
Parity bit
Odd/even parity
Stop bit
Sum check code
Online change Enable
Setting change Enable

Transparent code 02H (STX)
Additional code 10H (DLE)
Transparent code 03H (ETX)
Additional code 10H (DLE)
Transparent code 02H (STX)
Additional code 10H (DLE)
CH2
CH2 is not used