System Data Registers (Sd) - Panasonic ELC500 User Manual

9.7

System Data Registers (SD)

ELC500 uses the following system data registers (SD).
These system data registers can be used in programs.
Device No.
SD0 *1 Self-diagnostic error code
SD1 *1 Alarm Occurrence Unit Slot No.
SD2 *1 Error Occurrence Unit Slot No.
SD3 *1 Warning Occurrence Unit Slot No.
Verification Error Occurrence
SD4 *1
Unit Slot No.
SD5 *1 Installation error detection slot No.
Operation
SD7
number (hold type)
Operation error occurrence
SD8 address (hold type)
(32-bit lower-level address)
Operation error occurrence
SD9 address (hold type)
(32-bit higher-level address)
Operation
SD10
number (latest type)
Operation error occurrence
SD11 address (latest type)
(32-bit lower-level address)
Operation error occurrence
SD12 address (latest type)
(32-bit higher-level address)
SD19 RING counter 2.5 ms
RING counter 10 μs
SD20
RING counter 100 μs
SD21
SD22 Scan time (current value)
SD23 Scan time (minimum value)
SD24 Scan time (maximum value)
Interval for PB for execution at a
SD27
specified interval
SD29 Ethernet communication error code
*1 SD0 to SD5 are available only when the corresponding system relays SR0 to SR5 are on.
name
error occurrence PB
error occurrence PB
Stores the error code when a self-diagnosis error occurred.
Saves the slot number of the unit where an alarm has occurred.
Saves the slot number of the unit where an error has occurred.
Saves the slot number of the unit where a warning has occurred.
Saves the slot number of the unit where a verification error has
occurred.
Saves the slot number of the unit where an installation error was
detected.
Saves the PB number where the first operation error occurred
after the unit has started operating.
Saves the address where the first operation error occurred after
the unit has started operating. Perform monitoring using 32-bit
data.
Saves the PB number where an operation error occurred. Every
time a new error occurs, the data are updated. The value '0' is
recorded at the start of the scan.
Saves the address where an operation error occurred. Every
time a new error occurs, the data are updated. The value '0' is
recorded at the start of the scan. Perform monitoring using 32-bit
data.
The saved value is increased by one every time the respective
time unit has passed. (H0 to HFFFF)
Current values of SD19 to SD21 can only be read when SD19 to
SD21 are directly specified and read by MV instruction. The
scan start value is read by other instructions.
Saves the current value.
Stores the minimum
value.
Saves the maximum
value.
Saves interval for PB for execution at a specified interval.
Saves the error code when the Ethernet communication
instruction is executed.
178
ELC500 Control unit
Description
[Saved value (decimal)] x 10 μs
scan time indication:
operation cycle time in the RUN
mode only. Max. and Min. values
are cleared at switching between
the RUN mode
STOP/PROG. mode.
Indicates
and the