4
Commissioning
Festo – P.BE-CPX-CTEL-EN – 1411a – English
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With access via FMT or MMI, the parameter can be selected and changed separately. In this way, the
parameters “I/O mode” and “I/O length” can only be read.
Parameter information
The setting is made through bit 7 of parameter 8 (relative address 7).
Bit 7
Modul parameter setting
0
Leave switched off (standard setting)
1
Switch on again
Tab. 4.2
4.6.4
Parameter “I-port configuration”
Through the parameter “I-port X configuration” (X = number of the I-port), the type of diagnostics or
error control can be established for each I-port.
First and foremost, the setting is used for monitoring whether a device is connected and, if so, whether
it fits the configuration presetting.
At system start, the parameter is set to “Use existing device”. This setting can only be
changed after the system start.
Nominal configuration
Devices recognised at system start are saved as the “nominal configuration”. This nominal configura
tion remains intact even after modification of the parameter “I-port configuration” and is sometimes
even used by other configurations.
The following I-port configurations are available:
–
Use existing device (standard setting)
Operating mode “Automatic configuration”:
A device recognised at an I-port during system start is stored as a nominal configuration for this
I-port. When communication with the device is interrupted, the error “I-port device missing/failed”
is output. If the device is replaced by another device, this results in an “I-port configuration error”.
Additional information:
è
5.7.1 Operating mode “Automatic configuration”.
Operating mode “Manual configuration”:
Communication with the device works in a manner corresponding to the set I/O configuration (the
device must correspond to this configuration). If communication is interrupted, an error is not out
put. If the device is replaced by another device, various sequences are possible
(
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5.7.2 “Manual configuration” operating mode).
–
Expect device
This I-port configuration always requires a device connected to the corresponding I-port. An I-port
with this I-port configuration must always be connected to a device. Otherwise, an error is output.
Содержание CPX-FB13
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