YASKAWA MP920 User Manual page 204

8 Example Communications Module Applications
8.2.4 SYSMAC PLC Settings (C28H)
Word Address
DM 0920
(DM 1920)
DM 0921
(DM 1921)
DM 0922
(DM 1922)
DM 0923
(DM 1923)
SYSMAC PLC Setup
Bit No.
00 to 07 Standard settings for RS-232C interface communications conditions
00: Standard settings
01: Individual settings
Standard settings:
Transmission speed: 9,600 bps
Start bits: 1 bit
Data length: 7 bits
Stop bits: 2 bits
Parity: Even
If individual settings are selected, the settings in DM 0921 are used.
08 to 15 RS-232C interface port rate settings
00: Host Link
01: User memory download/upload mode
02: ASCII output mode
00 to 07 RS-232C interface baud rate settings
(Valid when bits 00 to 07 of DM 0920 or DM 1920 are set to "01")
00: 300 bps
01: 600 bps
02: 1,200 bps
03: 2,400 bps
04: 4,800 bps
05: 9,600 bps
08 to 15
See the following table.
00 to 07 RS-232C transmission delay
[00 to 99] × 10 ms (0 to 990 ms)
(BCD)
08 to 15 RS-232C interface settings with or without RS/CS control
00: No control
01: With control
00 to 07 Not used.
08 to 15 Unit number settings for Host Link mode
[00 to 31]: Unit number 00 to 31
(BCD)
* 1. RS-232C frame format settings
(Valid when bits 00 to 07 of DM 0920 or DM 1920 are set to 01)
Value
00
01
02
03
04
05
Function
*1
Start Bits Data Length
1 bit 7 bits
7 bits
8 bits
8 bits
8 bits
8 bits
8-14
Recommended
Setting
00:
Standard settings
00:
Host link mode
00:
300 bps when
"Individual set-
tings" is selected
00:
Start bits: 1
Data length: 7
Stop bits: 2
Parity: Even
0 ms
00: No control
00
Unit number 01
Stop Bits Parity
2 bits Even
2 bits Odd
1 bit None
2 bits None
1 bit Even
1 bit Odd
*2