Omron CPM1 - PROGRAMING MANUAL 02-2001 Programming Manual page 267

CPM2A/CPM2C Communications Functions
Word Bit
DM 6649
00 to 07 Start code (01 to FF)
(No-protocol, effective when bits 8 to 11 of DM 6648 are set to 1.)
00 to 15 No. of bytes of data received
(No-protocol, effective when bits 12 to 15 of DM 6648 are set to 0.)
00: 256 bytes
01 to FF: 1 to 255 bytes
End code (00 to FF)
(No-protocol, effective when bits 12 to 15 of DM 6648 are set to 1.)
Word Bit
DM 6650 00 to 03 Port settings
0: Standard (1 start bit, 7-bit data, 2 stop bits, even parity, 9,600 bps; Host
1: Settings in DM 6651
(Other settings will cause a non-fatal error, the default setting (0) will be
used, and AR 1302 will turn ON.)
04 to 11 Not used
12 to 15 Communications mode
0: Host Link or peripheral bus; 1: No-protocol
(Other settings will cause a non-fatal error, the Host Link setting (0) will be
used, and AR 1302 will turn ON.)
DM 6651
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
00:
01:
02:
03:
04:
05:
06:
07:
08:
09:
10:
11:
(Other settings will cause a non-fatal error, the default settings (03) will be
used, and AR 1302 will turn ON.)
DM 6652 00 to 15 Transmission delay (Host Link)
0000 to 9999 (BCD): Set in units of 10 ms.
(Other settings will cause a non-fatal error, the default setting (0000) will be
used, and AR 1302 will turn ON.)
Settings for Peripheral Port
Link unit number: 0)
Frame format
Start Length Stop Parity
1 7 1 Even
1 7 1 Odd
1 7 1 None
1 7 2 Even
1 7 2 Odd
1 7 2 None
1 8 1 Even
1 8 1 Odd
1 8 1 None
1 8 2 Even
1 8 2 Odd
1 8 2 None
Note 1. If SW1 on the front panel of the CPU Unit is ON, the peripheral port will oper-
ate with the default settings regardless of the settings in DM 6645 to
DM 6649.
2. When connecting a computer running Support Software via the peripheral
bus, turn OFF SW1 on the front panel of the CPU Unit and set DM 6650 to
0001 (Host Link). The CPU Unit will automatically switch to peripheral bus
communications for the serial communications port.
Function
Function
Section 4-3
Setting
Any
Any
Setting
Match host
parameters
0
0
Match host
parameters
0000 to 9999
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