TR7500_Hardware_en.pdf - 第85页

84 l T h e r e i s a P L C s e l f c h e c k i n g f u n c t i o n f o r T R 7 5 0 0 . T R 7 5 00 S o f t w a r e c a n s h o w t h e e rr o r c o d e s ; r e f e r t h e f o l l o w i ng t a b l e t o d o t r o ub l e s…

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6.7 PLC ERROR
l If the PLC’s ERROR light is lit, please check if this was caused by procedure 1.2-1.3.1.4. If
not, restart and re-test. If error persists, please inquire with the appropriate personnel. For
an explanation of the PLC indicator light please refer to 1.6.1.1 Status Indicator LEDs.
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l There is a PLC self checking function for TR7500. TR7500 Software can show the error codes; refer
the following table to do trouble shooting.
Error Code Description Steps to Take
ERR E 01
A Program with a syntax error has been
written
Change to PROG. mode and correct the
error
ERR E 02
Two or more OT (OUT) instructions and
KP(Keep) instructions are programmed
using the same relay.
Chang to PROG. Mode and correct the
program so that one relay is not used for
two or more OT instructions and KP
instructions. Or set the duplicated output to
“enable (K1)” in system register20.
ERR E 03
For instructions which must be used in a
pair such as jump (JP and LBL), one
instruction is either missing or in an
incorrect position.
Change to PROG. Mode and enter the two
instructions which must be used in a pair in the
correct positions.
ERR E 04
An instruction has been written which
does not agree with system register
settings. For example, the number
setting in a program does not agree with
the timer/ counter range setting.
Change to PROG. Mode, check the system
register settings, and change so that the
settings and the instruction agree.
ERR E 05
An instruction which must be written to
a specific area (main program area or
subprogram area) has been written to a
different area.
Change to PROG. Mode and enter the
instruction into the correct area.
ERR E 08
There is an incorrect operand in an
instruction which requires specific
combination operands (for example, the
operands must all be of a certain type).
Enter the correct combination of operands.
ERR E 20 CPU error Please contact your dealer.
ERR E 21 RAM error Please contact your dealer.
ERR E 22 RAM error Please contact your dealer.
ERR E 23 RAM error Please contact your dealer.
ERR E 24 RAM error Please contact your dealer.
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ERR E 25 RAM error Please contact your dealer.
ERR E 26 User ROM error Check the contents of the ROM
ERR E 27
Intelligent units installed exceed the
limitations(i.e., 4 or more link units)
Turn off the power and re-configure
intelligent units referring to the hardware
manual.
ERR E 28 System register error
Check the system register setting or
initialize the system registers.
ERR E 29
System bus time out error. Available
PLC FP2.
Please contact your dealer.
ERR E 30 Interrupt error 0.
A hardware problem or error due to noise is
possible. Turn off the power and check the
noise conditions.
ERR E 31
Interrupt error 1. An interrupt occurred
without an interrupt request.
A hardware problem or error due to noise is
possible. Turn off the power and check the
noise conditions.
ERR E 32
Interrupt error 2. An interrupt occurred
without an interrupt request.
A hardware problem or error due to noise is
possible. Turn off the power and check the
noise conditions.
ERR E 34 I/O status error
Check the contents of special data register
DT90036 and locate the abnormal unit.
Then turn off the power and replace the unit
with new one.
ERR E 35
A unit, which cannot be installed on the
slave station of the MEWNET-F link
system, is installed on the slave station.
Remove the illegal unit from the slave
station.
ERR E 36
The number of slots or I/O points used
for MEWNET-F exceeds the limitation.
Re-configure the system so that the number
of slots and I/O points is within the
specified range.
ERR E 37
I/O overlap or I/O setting that is over the
range is detected in the allocated I/O
and MEWNET-F I/O map.
Re-configure that I/O map correctly.
ERR E 38
I/O mapping for remote I/O terminal
boards, remote I/O terminal units and
I/O link unit is not correct.
Re-configure the I/O map for slave stations
according to the I/O points of the slave
stations.
ERR E 39 IC memory card read error
Install an IC memory card that has the
program properly recorded and execute the
read once again.