Reading From The Input Register Area - Toho Electronics TRM-10C Instruction Manual

8.3.4 Reading from the Input Register Area

The input register area is a read-only area. The current measured value and the
current time are mapped. Specify the start address (relative) and data count
(assuming that one word is two bytes) of the data to be read.
Function code: 04H
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Example of master transmission (with a start address of 0032H and a data count of 2 words)
Component
Slave address
Function code
Relative start address (high-order)
Relative start address (low-order)
Data
Read data count (high-order)
Read data count (low-order)
Error check
Total number of bytes
■
Example of slave response (with a start address of 0032H and a data count of 2)
Component
Slave address
Function code
Number of data bytes
Data 1 (high-order)
Data 1 (low-order)
Data
Data 2 (high-order)
Data 2 (low-order)
Error check
Total number of bytes
Data
Data
length
1
1 04H
1 00H
1 32H
1 00H
1 02H
2 CRC (16 bits)
8
Data
Data
length
1
1 04H
1 04H
1 00H
1 09H
1 00H
1 0AH
2
CRC (16 bits)
9
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