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4-4
Section
SRM1(-V2) Communications Functions
270
Word
Setting
Function
Bit
DM 6654
00 to 07
Start code (effective when bits 08 to 11 of DM6650 are set to 1.)
00: 256 bytes
01 to FF: 1 to 255 bytes
Any
08 to 15
End code (no-protocol)
When bits 12 to 15 of DM6653 are set to 0:
00: 256 bytes
01 to FF: 1 to 255 bytes
When bits 12 to 15 of DM6653 are set to 1:
Setting: 00 to FF (Hex)
Any
Note
If an out-of-range value is set, the following communications conditions will re-
sult. In that case, reset the value so that it is within the permissible range.
Communications mode:
Host Link
Communications format:
Standard settings
(1 start bit, 7-bit data; 2 stop bits, even parity,
9,600 bps)
Transmission delay:
No
Node number:
00
Word
Bit
Function
Setting
RS-232C Port Settings
The following settings are effective after transfer to the PC.
DM 6645
00 to 03
Port settings
0: Standard (1 start bit, 7-bit data, 2 stop bits, even parity, 9,600 bps)
1: Settings in DM 6646
To match
host pa-
rameters
04 to 07
CTS control settings
0: Disable; 1: Set
0
08 to 11
When using a 1:1 PC Link: Sets the link words for 1:1 PC Link.
0: LR 00 to LR 15
Not 0: Disable
When using a 1:N NT Link: Sets the maximum PT node number.
1 to 7
12 to 15
Communications mode
0: Host Link; 1: No-protocol; 2: 1:1 PC Link Slave; 3: 1:1 PC Link Master; 4: 1:1 NT
Link; 5: 1:N NT Link
(Any other setting specifies Host Link mode, causes a non-fatal error, and turns ON
AR 1302.)
The 1:N NT Link is supported by SRM1-C02-V2 only.
0
DM 6646
00 to 07
Baud rate
00: 1.2K, 01: 2.4K, 02: 4.8K, 03: 9.6K, 04: 19.2K
To match
host pa-
rameters
08 to 15
Frame format
Start
Length
Stop
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 bit
Even
04:
1 bit
7 bits
2 bit
Odd
05:
1 bit
7 bits
2 bit
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 bit
Even
10:
1 bit
8 bits
2 bit
Odd
11:
1 bit
8 bits
2 bit
None
To match
host pa-
rameters
DM 6647
00 to 15
Transmission delay (Host Link)
0000 to 9999 (BCD): Set in units of 10 ms, e.g., setting of 0001 equals 10 ms
To match
host pa-
rameters