Hitachi WJ C1 Series

Chapter 11 RS485 Communication
11-2-5
 If the command cannot be executed successfully, an exceptional response is returned. For
details, refer to "11.2.9 Exceptional Responses".
 The writing to the coil numbers 0001h to 000Fh can also be substituted in the holding register
to the register number 1F01h. As an example, the bit-structure of the holding register 1F01h is
shown below. For details, refer to "18.1.1 List of Modbus Coil Numbers".
bit
Symbol
Item
bit
Symbol
Item
15
-
-
7
IN1
Input terminal 1 function
(0:OFF/1:ON)
14
-
-
6
-
-
13
IN7
Input terminal 7 function
(0:OFF/1:ON)
5
-
-
12
IN6
Input terminal 6 function
(0:OFF/1:ON)
4
RS
Reset
11
IN5
Input terminal 5 function
(0:OFF/1:ON)
3
EXT
External fault
10
IN4
Input terminal 4 function
(0:OFF/1:ON)
2
-
Rotation direction (0:
Forward/1: Reverse)
9
IN3
Input terminal 3 function
(0:OFF/1:ON)
1
-
RUN command (0: Stop/1: Run)
8
IN2
Input terminal 2 function
(0:OFF/1:ON)
0
-
-
!