ICP DAS USA I-7530A-MR User Manual page 101

 Function Code:
In this setting interface, it supports the function code 0x05, 0x06, 0x0F,
and 0x10.
 Start Address (High):
This field indicates the high byte of Modbus reference IO data
address.
 Start Address (Low):
This field indicates the low byte of Modbus reference IO data address.
 Bit Count(High):
This filed indicates the high byte of number of bits which you want to
write. If the function code is 0x05 or 0x06, this field will be disabled.
Note: When using function code 0x10, this field will be the number of
word (high byte).
 Bit Count(Low):
This field indicates the low byte of number of bits which you want to
write. If the function code is 0x05 or 0x06, this field will be disabled.
Note: When using function code 0x10, this field will be the number of
word (low byte).
 Byte Count:
This field is always read-only. When using function code 0x0F or 0x10,
the value of the field will automatically be calculated by utility
I-7530A-MR Modbus RTU to CAN Converter User's Manual (Version 1.07, 06/2016) ------------- 101