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1-3
Section
CPM2C Changes in SW2
21
The nine possible settings for the input time constant are shown below. (Set only
the rightmost digit for IR 000.)
00: 10 ms
01: 1 ms
02: 2 ms
03: 3 ms
04: 5 ms
05: 10 ms
06: 20 ms
07: 40 ms
08: 80 ms
1-2-9 Error Log Settings
Error Detection and Error Log Operation (DM 6655)
Make the settings shown below to determine whether or not a non-fatal error is to
be generated when the cycle time exceeds 100 ms or when the voltage of the
built-in battery drops (CPM2A/CPM2C only), and to set the method for storing
records in the error log when errors occur.
Low battery voltage detection
0: Detect
1: Don’t detect
15
0
DM6655
0
Bit
Always
0
Cycle time over detection
0: Detect
1: Don’t detect
Error log storage method
0: Error records for the 7 most recent errors always stored (older errors deleted).
1: Only the first 7 error records stored (no errors stored beyond that point).
2 to F: Error records not stored.
Default:
Low battery voltage and cycle time over errors detected, and error records
stored for the 7 most recent errors.
Battery errors and cycle time overrun errors are non-fatal errors.
For details on the error log, refer to
Section 9 Troubleshooting.
Note
The low battery error is applicable to CPM2A/CPM2C only. This digit isn’t used in
CPM1/CPM1A/SRM1(-V2) PCs and CPM2C PCs that aren’t equipped with a
battery.
1-3
CPM2C Changes in SW2
The connection of a Programming Console to the peripheral connector is auto-
matically detected for CPM2C CPU Units with lot numbers of 0190O (1 Septem-
ber 2000) or later. This has resulted in a change to the operation of SW2 on the
front of the CPU Unit. Check the lot number to confirm the operation of SW2 for
any of the following model numbers before attempting operations.
CPU Units with Changed Specifications for SW2
I/O
Units with Relay
Outputs and a
i
Units with Transistor Outputs and a
Connector
Ou pu s a d a
Terminal Block
Sinking outputs
Sourcing outputs
10 I/O points
CPM2C-10CDR-D
CPM2C-10C1DR-D
CPM2C-10CDTC-D
CPM2C-10C1DTC-D
CPM2C-10CDT1C-D
CPM2C-10C1DT1C-D
20 I/O points
---
CPM2C-20CDTC-D
CPM2C-20C1DTC-D
CPM2C-20CDT1C-D
CPM2C-20C1DT1C-D
Interpreting Lot Numbers
Lot No.
01 9
0
O
Year:
Rightmost digit (2000 = 0)
Month:
JAN to SEP = 1 to 9
OCT to NOV = X to Z
Day:
1 to 31
Factory identification number
(indicated on the side of the product only)