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Appendix E
PC Setup
462
Word(s)
Bit(s)
Function
Default
Interrupt/Refresh Processing (DM 6620 to DM 6622)
The following settings are effective after transfer to the PC the next time operation is started.
DM 6620
00 to 09
Special I/O Unit cyclic refresh (Bit number corresponds to unit number, PC
Link Units included)
0: Enable cyclic refresh and I/O REFRESH (IORF(97)) from main program
1: Disable (refresh only for I/O REFRESH from interrupt programs)
Disable not valid for normal (C200H) interrupt response or on Slave Racks.
Enable
10 to 11
Reserved
---
12 to 15
Interrupt response
0: Normal (C200H compatible)
1: High-speed (C200HS)
Normal
DM 6621
00 to 07
Reserved
---
08 to 15
Special I/O Unit refresh (PC Link Units included)
00: Enable refresh for all Special I/O Units
01: Disable refresh for all Special I/O Units (but, not valid on Slave Racks)
Enable
DM 6622
00 to 07
Scheduled interrupt time unit
00: 10 ms
01: 1 ms
10 ms
08 to 15
Scheduled interrupt time unit enable
00: Disable (10 ms)
01: Enable
DM 6623 to
DM 6644
00 to 15
Reserved
---
RS-232C Port Settings (DM 6645 to DM 6649)
The following settings are effective after transfer to the PC.
DM 6645
00 to 07
Port settings
00: Standard (1 start bit, 7-bit data, even parity, 2 stop bits, 9,600 bps)
01: Settings in DM 6646
Standard
08 to 11
Words linked for 1:1 link
0: LR 00 to LR 63; 1: LR 00 to LR 31; 2: LR 00 to LR 15
LR 00 to LR 63
12 to 15
Communications mode
0: Host link; 1: RS-232C; 2: 1-to-1 link slave; 3: 1-to-1 link master;
4: NT (PT) link
Host Link
DM 6646
00 to 07
Baud rate
00: 1.2K, 01: 2.4K, 02: 4.8K, 03: 9.6K, 04: 19.2K
1.2 K
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
1 start bit, 7-bit
data, 1 stop bit,
even parity
DM 6647
00 to 15
Transmission delay
0000 to 9999: BCD in ms.
0 ms