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The Essential Safety and Health Requirements must be observed as per standards EN 50014 and EN 50020.
The remote control unit can be used for zones 1 and 2. Use of the protective carrying case prevents any risk of
electrostatic discharge and is compulsory. Replacement batteries must be identical to the original batteries specified by
ISC/OLDHAM.
The operating temperature is between -40°C and +70°C.
The IR20 remote control unit has the following marking:
OLDHAM France 62 Arras
CE 0080
IR20
EEx ia IIC T4
INERIS 04ATEX0011X
Do not open in explosive atmospheres
Serial number and year of build
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There are 2 JBUS communication modes in the OLCT80 (via the loop and loop management system: see
Figures 1, 5 and 6). The modes are ASCII or binary.
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− Function 50 is used by the MX62 to search for slaves on the line
Question:
Reply:
− Function 51 is used to read faults
Question:
Reply:
− Function 45 is used to read measurements
Question:
Reply:
− Function 29 is used to control the relays
Question:
Reply:
Settable speed, 1 start, 7 bits, even parity, 1 stop bit
Timeout of 450 ms (reading response time is less than 10 ms).
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0150AF
01500002FEDDD2
0151AE
015100000000000000000000AE
01450A01AF
01450A0100743B
012901D5
0129D6
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