Festo CPX-2AA-U-I, Электронное руководство

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2. Analogue input module CPX−2AE−U−I
2−21
Festo P.BE−CPX−AX−EN en 0503b
C h anne l p a r amete r s : M o nit or in g c h anne l x
Function no. 4828 + m * 64 + 6 (channel 0) m = module number (0 ... 47)
4828 + m * 64 +
7
(channel 1)
Description For the individual channels of the analogue input modules, monitoring of indi
vidual faults can be activated or deactivated (suppressed) independently of each
other. Active monitoring causes the following: The fault is:
sent to the CPX field bus node
displayed by the module common error LED.
Further infomation on these monitorings can be found under the description of
the relevant fault in section 2.5.1.
Bit Bit 0: monitoring lower limit (or less than rated range)
Bit 1: monitoring upper limit (or rated range exceeded)
Bit 2: monitoring wire fracture
Bit 3...6: reserved
Bit 7: monitoring parametrizing faults
Values 1 = active; 0 = inactive
Presetting bit 0...2:
0 (inactive)
Presetting bit 7: 1 (active)
Remark Monitoring the upper/lower limit:
Monitoring the input signals for less than or exceeding the rated range or
monitoring the range limits defined with the parameters Lower limit ..." as
well as Upper limit ..." (depending on the data format used, see sections
2.4.4 and 2.4.5).
Monitoring wire fracture:
Only effective for the signal range 4...20 mA. A drop below the minimum input
current (I
IN
<
2.0mA) counts as a wire fracture.
Monitoring parametrizing faults:
Some channel−specific parameters are checked for non−permitted values
during parametrizing:
Filter measured value
Lower limit
Upper limit
The setting of the channel parameter Monitoring parametrizing faults" is only
effective if the module parameter Monitoring parametrizing faults" is set to
active".
Tab.2/13: Monitoring channel x