Example Commreq Data Block For Configuring Serial I/O Protocol - GE VersaMax PLC User Manual

First 6 words
Address + 6
Address + 7
Address + 8
Address + 9
Address + 10
Address + 11
Address + 12
Address + 13
Address + 14
Address + 15
Address + 16
Address + 17
Address + 18–21
Address + 22*
Address + 22*
232 GFK-1503E
For public disclosure
12.2.7 Example COMMREQ Data Block for
Configuring Serial I/O Protocol
Values
FFF0H
005
0 = Slave
4=4800, 5=9600, 6=19200, 7=
38400*, 8=57600**
*CPU models IC200CPU005
and CPUE05 only
0 = None, 1 = Odd, 2 = Even
0 = Hardware, 1 = None
0-255 (units of 10ms,e.g. 10=
100ms)
0 = Long
0=7 bits, 1=8 bits
0 = 1 stop bit, 1 = 2 stop bits
not used
0 = 2-wire, 1 = 4-wire
not used
0-255 (units of 10ms,e.g. 10=100ms)
0-255 (units of 10ms,e.g. 10=100ms)
Note The data block length (Address + 0) for a COMMREQ that includes the Receive to
transmit delay and RTS drop delay should be 12H not 10H. Both forms (Length 10H and
12H) are supported.
Note If Serial I/O is configured for 115.2K baud. a major error code 12 (0cH) and a
minor error code 2 (02H) is returned in the COMMREQ status word. This will occur for
any unsupported baud rate.
Meaning
Reserved for COMMREQ use.
Command
Protocol: 0005=Serial IO
Port Mode
Data Rate
Parity
Flow Control
Turnaround Delay
Timeout
Bits per Character
Stop Bits
Interface
Duplex Mode
Device Identifier
Receive to transmit
delay
RTS drop delay
VersaMax PLC User Manual