UMAXTC20CO V1.1.1 Preliminary Documentation – May be Subject to Change 36-59
3.3.2.
Object 6110h: Thermocouple Sensor Type
This object determines what kind of thermocouple is connected to the input. The formula used to
calculate the FV temperature from the measured microvolts is dependent on this variable. The
following sensor types are supported by the scanner.
Value Meaning
1
Thermocouple J Type
2
Thermocouple K Type
7
Thermocouple T Type
Table 4 – Supported Thermocouple Types
Object Description
Index 6110h
Name
Thermocouple Sensor Type
Object Type
ARRAY
Data Type
UNSIGNED16
Entry Description
Sub-Index 0h
Description Largest
sub-index supported
Access RO
PDO Mapping
No
Value Range
4
Default Value
4
Sub-Index
1h to 4h (X = 1 to 4)
Description
Thermocouple X Sensor Type
Access RW
PDO Mapping
No
Value Range
See Table 4
Default Value
1 (J-Type)
3.3.3.
Object 6112h: Thermocouple Operating Mode
This object establishes whether a thermocouple input is active. When a sub-index is set to zero (0)
“Channel off,” the associate input is disabled. As described in section 1.2, the FV for the input is
loaded with 0xFFFFFFFF (not a number) and the PV with 0xFFFF (-1). All error flags associated
with the channel are cleared. This channel is also ignored in any averaging.
By default, all four channels have this object set to one (1) “Normal Operation.”
Object Description
Index 6112h
Name
Thermocouple Operating Mode
Object Type
ARRAY
Data Type
UNSIGNED8
