506
APPENDICES APPENDIX
Appendix 3 Buffer Memory
593
(251H)
609
(261H)
For confirmation
of transmission
control status
Transmission setting status (parameter setting)
• Operation setting (b0)
0: Independent 1: Interlink
• Data bit (b1)
0: 7 bits 1: 8 bits
• Parity bit (b2)
0: None 1: Yes
• Odd/even parity (b3)
0: Odd 1: Even
• Stop bit (b4)
0: 1 bit 1: 2 bits
• Sum check code (b5)
0: None 1: Yes
• Online change (b6)
0: Disable 1: Enable
• Setting change (b7)
0: Disable 1: Enable
• Communication speed (b8 to b11)
1200 bps to 230400 bps
• For system (b12 to b15)
All 0
Depend
s on
paramet
er
setting.
R
594
(252H)
610
(262H)
Communication protocol status (current)
0: MELSOFT connection
1: MC protocol (Format 1)
2: MC protocol (Format 2)
3: MC protocol (Format 3)
4: MC protocol (Format 4)
5: MC protocol (Format 5)
6: Nonprocedural protocol
7: Bidirectional protocol
8: (For interlink operation)
9: Predefined protocol
Depend
s on
module
status.
Page 445 Intelligent
function module
monitor
595
(253H)
611
(263H)
Transmission status (current)
• Operation setting (b0)
0: Independent 1: Interlink
• Data bit (b1)
0: 7 bits 1: 8 bits
• Parity bit (b2)
0: None 1: Yes
• Odd/even parity (b3)
0: Odd 1: Even
• Stop bit (b4)
0: 1 bit 1: 2 bits
• Sum check code (b5)
0: None 1: Yes
• Online change (b6)
0: Disable 1: Enable
• Setting change (b7)
0: Disable 1: Enable
• Communication speed (b8 to b11)
1200 bps to 230400 bps
• For system (b12 to b15)
All 0
Depend
s on
module
status.
596
(254H)
612
(264H)
Control signal
status
RS-232 control signal status
0: OFF status 1: ON status
RS(RTS) (b0)
DR(DSR) (b1)
ER(DTR) (b2)
CD(DCD) (b3)
CS(CTS) (b4)
CI(RI) (b5)
Not used (b6 to b15) All 0
Depend
s on
signal
status.
R
Address
Dec (Hex)
Purpose Name Defaul
t value
Protocol Reference
CH1 CH2 MC Non Bi Pd