86
Specifications Section 2-1
Error check User-defined errors (i.e., user can define fatal errors and
non-fatal errors)
The FPD(269) instruction can be used to check the execution
time and logic of each programming block.
FAL and FALS instructions can be used with the CJ1-H and
CJ1M CPU Units to simulate errors.
11-2-5 Error Messages
Programming Manual:
6-5 Diagnostic Func-
tions and 6-5-3 Failure
Alarm Functions
Error log Up to 20 errors are stored in the error log. Information
includes the error code, error details, and the time the error
occurred.
A CJ1-H or CJ1M CPU Unit can be set so that user-defined
FAL errors are not stored in the error log.
Programming Manual:
6-4-1 Error Log
Serial communications Built-in peripheral port: Programming Device (including Pro-
gramming Console) connections, Host Links, NT Links
Built-in RS-232C port: Programming Device (excluding Pro-
gramming Console) connections, Host Links, no-protocol
communications, NT Links
2-5-1 Serial Communi-
cations System
Programming Manual:
6-3 Serial Communica-
tions Functions
Serial Communications Unit (sold separately): Protocol mac-
ros, Host Links, NT Links
Clock Provided on all models.
Accuracy: Ambient temperature Monthly error
55°C −3.5 min to +0.5 min
25°C −1.5 min to +1.5 min
0°C −3 min to +1 min
Note Used to store the time when power is turned ON and
when errors occur.
Programming Manual:
6-4-5 Clock Functions
Power OFF detection time 10 to 25 ms (not fixed) 10-3 Power OFF Oper-
ation
Power OFF detection delay
time
0 to 10 ms (user-defined, default: 0 ms) Programming Manual:
6-4-4 Power OFF
Detection Delay Time
Memory protection Held Areas: Holding bits, contents of Data Memory and
Extended Data Memory, and status of the counter Comple-
tion Flags and present values.
Note If the IOM Hold Bit in the Auxiliary Area is turned ON,
and the PLC Setup is set to maintain the IOM Hold Bit
status when power to the PLC is turned ON, the con-
tents of the CIO Area, the Work Area, part of the Auxil-
iary Area, timer Completion Flag and PVs, Index
Registers, and the Data Registers will be saved for up
to 20 days.
9-2-3 Data Area Prop-
erties
Sending commands to a Hos
t
Link computer
FINS commands can be sent to a computer connected via
the Host Link System by executing Network Communications
Instructions from the PLC.
2-5-2 Systems
Remote programming and
monitoring
Host Link communications can be used for remote program-
ming and remote monitoring through a Controller Link Sys-
tem or Ethernet network.
2-5-3 Communications
Network System
Programming Manual:
6-4-7 Remote Program-
ming and Monitoring
Three-level communications Host Link communications can be used for remote program-
ming and remote monitoring from devices on networks up to
two levels away (Controller Link Network, Ethernet Network,
or other network).
2-5-2 Systems
Storing comments in CPU Unit I/O comments can be stored as symbol table files in the
Memory Card, EM file memory, or comment memory (see
note).
Note Comment memory is supported for CX-Programmer
version 5.0 or higher and CS/CJ-series CPU Units
with unit version 3.0 or later only.
I/O comments: CX-Pro-
grammer Ver. 5.0 Oper-
ation Manual (W437)
Storing comments in
CPU Unit: Program-
ming Manual (W394)
Item Specifications Reference
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