
B-61813E/03 CONNECTIONS 9. TEMPERATURE INPUT MODULE
−107−
Abnormality data
If an abnormality occurs in the input data or the module, the DI29 bit
(status signal) is set to "1", resulting in the display changing from
temperature input data to abnormality data. Abnormality data is
assigned to these bits as listed below:
DI16 : CH2 input out of scale--the current temperature falls
outside the measurable range.
DI17 : CH2 input burn-out--the cable or connector has been
detached.
DI18 : CH4 input out of scale--the current temperature falls
outside the measurable range.
DI19 : CH4 input burn-out--the cable or connector has been
detached.
DI20 : Cold-junction abnormality (only for thermocouple-type
input module)--the temperature of the terminal board unit
falls outside the measurable range.
DI21 : System error--the internal circuit is abnormal.
DI22 : Wrong module--other than the correct module has been
installed.
9.4 COMPLETE CONNECTION OF TEMPERATURE INPUT
MODULE
9.4.1 Temperature input module connection diagram
(There are two types of terminal board units, the first for a
thermoresistance-type module and the second for a thermocouple-type
module.)
See Section 9.7 for explanations about the dimensions of the terminal
board.
Temperature sensors
•Thermoresistance
•J/K thermocouple
Hirose
Electric Co., Ltd.
Terminal board unit
Temperature input module
Cable
Hirose Electric Co., Ltd.