![background image](http://html1.mh-extra.com/html/york/21rt-47rt/21rt-47rt_installation-operation-and-maintenance-manual_3494818083.webp)
Description for Modbus protocol interface
80
AI25
3
1044
AI26
3
1045
AI27
3
1046
AI28
3
1047
AI29
3
1048
AI30
3
1049
AI31
3
1050
AI32
3
1051
DI17-32
3
1052
bit0-15:DI17-31,1-ON,0-OFF
DI1-16
3
1053
bit0-15:DI1-16,1-ON,0-OFF
DO17-32
3
1054
bit0-15:DO17-32,1-ON,0-OFF
DO1-16
3
1055
bit0-15:DO1-16,1-ON,0-OFF
EXV1 Steps
3
1056
EXV2 Steps
3
1057
EXV3 Steps
3
1058
EXV4 Steps
3
1059
Modify Target’s Superheat
Degree 1
3
1060
Modify Target’s Superheat
Degree 2
3
1061
Modify Target’s Superheat
Degree 3
3
1062
Modify Target’s Superheat
Degree 4
3
1063
Dial State 1
3
1064
Dial State 2
3
1065
Fault Word 1
3
1066
Defective Word Within Module, 128 bit
Fault Word 2
3
1067
Fault Word 3
3
1068
Fault Word 4
3
1069
Fault Word 5
3
1070
Fault Word 6
3
1071
Fault Word 7
3
1072
Fault Word 8
3
1073
Corresponding Module of the
Current Data
3
1074
Reserve
3
1075-1199
Fault Information Table
Fault Location
Fault name
Fault code
1
Fault Word 1
Bit0
Fault of module’s chilled backwater temperature
sensor
1A
2
Bit1
Fault of module’s chilled outflow water
temperature sensor
2A
3
Bit2
Fault of module’s cooling outflow water
temperature sensor
3A
4
Bit3
Fault of module’s cooling outflow water
temperature sensor
4A
5
Bit4
Fault of Backwater Temperature Sensor of
System Chilled Water
★
5A
Cooke Industries - Phone: +64 9 579 2185 Email: [email protected] Web: www.cookeindustries.co.nz