Advertisement
2-3
Detailed Description of the Services ..................................................................................... 2-8
2-3-1
Read Variable Area .................................................................................................................... 2-8
2-3-2
Write Variable Area..................................................................................................................... 2-9
2-3-3
Composite Read from Variable Area ........................................................................................ 2-11
2-3-4
Composite Write to Variable Area ............................................................................................ 2-12
2-3-5
Read Controller Attributes ........................................................................................................ 2-13
2-3-6
Read Controller Status ............................................................................................................. 2-14
2-3-7
Echoback Test .......................................................................................................................... 2-15
2-3-8
Operation Command ................................................................................................................ 2-16
2-4
Response Code List .............................................................................................................. 2-22
Section 3
Communications Data for CompoWay/F
3-1
Variable Area (Setting Range) List......................................................................................... 3-2
3-2
Status 1 and Status 2 ............................................................................................................ 3-21
Section 4
Modbus Communications Procedure
4-1
Data Format.............................................................................................................................. 4-2
4-1-1
Command Frame........................................................................................................................ 4-2
4-1-2
Response Frame ........................................................................................................................ 4-4
4-1-3
Error Codes ................................................................................................................................ 4-5
4-2
Function List ............................................................................................................................ 4-6
4-3
Variable Area............................................................................................................................ 4-7
4-4
Detailed Description of the Functions ................................................................................... 4-8
4-4-1
Variable Read, Multiple............................................................................................................... 4-8
4-4-2
Variable Write, Multiple............................................................................................................. 4-10
4-4-3
Variable Write, Single/Operation Command............................................................................. 4-12
4-4-4
Echoback Test .......................................................................................................................... 4-15
4-5
Upload Settings and Download Settings for Modbus Communications.......................... 4-16
Section 5
Communications Data for Modbus
5-1
Variable Area (Setting Range) List......................................................................................... 5-2
5-2
Status...................................................................................................................................... 5-17
Section 6
Programless Communications
6-1
Programless Communications............................................................................................... 6-3
6-1-1
Introduction ................................................................................................................................. 6-3
6-1-2
Features...................................................................................................................................... 6-3
6-1-3
Operation for Programless Communications.............................................................................. 6-4
6-1-4
Timing of Turning Power ON and OFF ....................................................................................... 6-4
6-1-5
Connectable PLCs...................................................................................................................... 6-5
E5@D Digital Temperature Controllers Communications Manual (H225)
15
Advertisement
