RE_240-1CA20

Manual VIPA System 200V Chapter 3 Deployment
HB97E - CP - RE_240-1CA20 - Rev. 12/42 3-47
Code 01h: Read n Bits of master output area 0x
Code 02h: Read n Bits of master input area 1x
Command telegram
Slave address Function code Address
1. Bit
Number of
Bits
Check sum
CRC/LRC
1 Byte 1 Byte 1 Word 1 Word 1 Word
Respond telegram
Slave address Function code Number of
read Bytes
Data
1. Byte
Data
2. Byte
...
Check sum
CRC/LRC
1 Byte 1 Byte 1 Byte 1 Byte 1 Byte 1 Word
max. 250 Byte
03h: Read n Words of master output area 4x
04h: Read n Words master input area 3x
Command telegram
Slave address Function code Address
1. Bit
Number of
Words
Check sum
CRC/LRC
1 Byte 1 Byte 1 Word 1 Word 1 Word
Respond telegram
Slave address Function code Number of
read Bytes
Data
1. word
Data
2. word
...
Check sum
CRC/LRC
1 Byte 1 Byte 1 Byte 1 Word 1 Word 1 Word
max. 125 Words
Code 05h: Write 1 Bit to master output area 0x
A status change is via "Status Bit" with following values:
"Status Bit" = 0000h → Bit = 0
"Status Bit" = FF00h → Bit = 1
Command telegram
Slave address Function code Address
Bit
Status
Bit
Check sum
CRC/LRC
1 Byte 1 Byte 1 Word 1 Word 1 Word
Respond telegram
Slave address Function code Address
Bit
Status
Bit
Check sum
CRC/LRC
1 Byte 1 Byte 1 Word 1 Word 1 Word
Read n Bits
01h, 02h
Read n Words 03h,
04h
Write 1 Bit
05h