1-58 1. Overview
*1 For PLC1, select [Yes] for [System memory ($s) V7 Compatible] under [Detail] on the [PLC Properties] window. The same information is
stored in the $P1 and $s.
*2 If designating the relay station number using $s130, select [Yes] for [System memory ($s) V7 Compatible] under [Detail] on the [PLC
Properties] window for PLC1. $P1: 004 cannot be used in this case.
*3 If executing device memory map control using $s762, $s763 and $s764, select yes for [System memory ($s) V7 Compatible] under [Detail]
on the [PLC Properties] window for PLC2. Note that $P2: 493/494/495 cannot be used in this case.
419-421 - Device memory map 21 Status, error code
V
422-424 - Device memory map 22 Status, error code
425-427 - Device memory map 23 Status, error code
428-430 - Device memory map 24 Status, error code
431-433 - Device memory map 25 Status, error code
434-436 - Device memory map 26 Status, error code
437-439 - Device memory map 27 Status, error code
440-442 - Device memory map 28 Status, error code
443-445 - Device memory map 29 Status, error code
446-448 - Device memory map 30 Status, error code
449 - Device memory map 31 Status
450 - Device memory map 31 Error code 1
451 - Device memory map 31 Error code 2
:: :
493
762
(PLC2)
*3
Device memory map reading prohibited flag (refer to the V9 Series Reference Manual).
0: Periodical reading/synchronized reading executed
Other than 0: Periodical reading/synchronized reading stopped
V494
763
(PLC2)
*3
Forced execution of the device memory map TRL_READ/TBL_WRITE macro
Setting for macro operation when there is a station with a communication error
0: The macro is not executed in relation to any of the stations.
Other than 0: The macro is executed in relation to connected stations.
495
764
(PLC2)
*3
Device memory map writing prohibited flag (refer to the V9 Series Reference Manual).
0: Periodical writing/synchronized writing executed
Other than 0: Periodical writing/synchronized writing stopped
:- :
500
800
(PLC3)
Device memory for Modbus slave communications
Used for setting the number of the reference device memory map and the device memory for
referring free area 31.Used for setting the number of the reference device memory map and the
device memory for referring free area 31.
$Pn500 to 505 are exclusively used for monitoring: $s800 to 805 are used for writing from the
Modbus master.
Refer to the Modbus Slave Communication Specifications.
V
501
801
(PLC3)
502
802
(PLC3)
503
803
(PLC3)
504
804
(PLC3)
505
805
(PLC3)
:: :
508
765
(PLC2)
Error response code (page 1-62)
If “800BH” (error code received) is stored for the error status ($Pn100 to 355), it is possible to
check the error code.
V
509
766
(PLC2)
510
767
(PLC2)
511
768
(PLC2)
$Pn
(n = 1 to 8)
$s
*1
Contents
Device
Type