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86
PLC Setup
Section 4-5
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
Start bits
Data bits
Stop bits
Parity
00:
1 bit
7 bits
1 bit
Even
01:
1 bit
7 bits
1 bit
Odd
02:
1 bit
7 bits
1 bit
None
03:
1 bit
7 bits
2 bits
Even
04:
1 bit
7 bits
2 bits
Odd
05:
1 bit
7 bits
2 bits
None
06:
1 bit
8 bits
1 bit
Even
07:
1 bit
8 bits
1 bit
Odd
08:
1 bit
8 bits
1 bit
None
09:
1 bit
8 bits
2 bits
Even
10:
1 bit
8 bits
2 bits
Odd
11:
1 bit
8 bits
2 bits
None
(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.)
Word(s)
Bit(s)
Function
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