"Index-Group/Offset" Specification of the PLC services

This section includes services to access the PLC memory range (%M field).

Index Group

Index Offset

Access

Data type

Phys. unit

Def. range

Description

Remarks

0x00004020

0x00000000-

0x0000FFFF

R/W

UINT8[n]

READ_M - WRITE_M

PLC memory range(%M field).Offset is byte offset.

0x00004021

0x00000000-

0xFFFFFFFF

R/W

UINT8

READ_MX - WRITE_MX

PLC memory range (%MX field).The low word of the index offset is the byte offset. The index offset contains the bit address calculated from the byte number *8 + bit number

0x00004025

0x00000000

R

ULONG

PLCADS_IGR_RMSIZE
 Byte length of the process diagram of the memory range

 

0x00004030

0x00000000-

0xFFFFFFFF

R/W

UINT8

PLCADS_IGR_RWRB
Retain data range. The index offset is byte offset

 

0x00004035

0x00000000

R

ULONG

PLCADS_IGR_RRSIZE
 Byte length of the retain range

 

0x00004040

0x00000000-

0xFFFFFFFF

R/W

UINT8

PLCADS_IGR_RWDB
Data range. The index offset is byte offset.

 

0x00004045

0x00000000

R

ULONG

PLCADS_IGR_RDSIZE
 Byte length of the data range