Omron SYSMAC CPM2B Operation Manual page 104

PLC Setup
Word(s) Bit(s)
DM 6646 00 to 07 Baud rate
00: 1,200 bps; 01: 2,400 bps; 02: 4,800 bps; 03: 9,600 bps; 04: 19,200 bps
08 to 15 Frame format
00:
01:
02:
03:
04:
05:
06:
07:
08:
09:
10:
11:
(Any other setting specifies standard settings (1 start bit, 7 data bits; even parity, 2 stop bits),
causes a non-fatal error, and turns ON AR 1302.)
DM 6647 00 to 15 Transmission delay (0000 to 9999 BCD sets a delay of 0 to 99,990 ms.)
(Any other setting specifies a delay of 0 ms, causes a non-fatal error, and turns ON AR 1302.)
DM 6648 00 to 07 Node number (Host Link)
00 to 31 (BCD)
(Any other setting specifies a node number of 00, causes a non-fatal error, and turns ON AR
1302.)
08 to 11 Start code selection for no-protocol communications
0: Disables start code; 1: Enables start code in DM 6649
(Any other setting disables the start code, causes a non-fatal error, and turns ON AR 1302.)
12 to 15 End code selection for no-protocol communications
0: Disables end code; 1: Enables end code in DM 6649; 2: Sets end code of CR, LF.
(Any other setting disables the end code, causes a non-fatal error, and turns ON AR 1302.)
DM 6649 00 to 07 Start code (00 to FF)
(This setting is valid only when bits 8 to 11 of DM 6648 are set to 1.)
08 to 15 When bits 12 to 15 of DM 6648 set to 0:
Sets the number of bytes to receive. (00: 256 bytes; 01 to FF: 1 to 255 bytes)
When bits 12 to 15 of DM 6648 set to 1:
Sets the end code. (00 to FF)
Peripheral Port Communications Settings
The following settings are effective after transfer to the PLC.
If CPU Board Communications Switch SW202 is ON, communications through the peripheral port are governed by the
default settings (all 0) regardless of the settings in DM 6650 through DM 6654. Communications through the peripheral
port are governed by the Programming Console protocol if Communications Switch SW201 is OFF.
DM 6650 00 to 03 Port settings
00: Standard (1 start bit, 7 data bits, even parity, 2 stop bits, 9,600 bps, Host Link unit number: 0)
01: Settings in DM 6651
(Any other setting specifies standard settings, causes a non-fatal error, and turns ON AR 1302.)
04 to 11 Not used.
12 to 15 Communications mode
0: Host Link or peripheral bus; 1: No-protocol
(Any other setting specifies Host Link, causes a non-fatal error, and turns ON AR 1302.)
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Start bits Data bits
1 bit 7 bits
1 bit 7 bits
1 bit 7 bits
1 bit 7 bits
1 bit 7 bits
1 bit 7 bits
1 bit 8 bits
1 bit 8 bits
1 bit 8 bits
1 bit 8 bits
1 bit 8 bits
1 bit 8 bits
Function
Stop bits Parity
1 bit Even
1 bit Odd
1 bit None
2 bits Even
2 bits Odd
2 bits None
1 bit Even
1 bit Odd
1 bit None
2 bits Even
2 bits Odd
2 bits None
Section 4-5