Panasonic S-Link FP2, Техническое руководство

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2-3
MODE switch
These are used to specify the number of input/output points for the S-LINK system (32, 64, 96 or 128
points). Set value is read only once, when the power supply to the FP
Σ
is turned on.
If the setting is changed after the power supply was turned on, E42 (I/O verify error) will occur
in the control unit.
RUN/CHK. selector switch
Set to RUN: This is the normal operation mode.
Set to CHK.: This is the check mode (for detailed information, see
SET switch).
The following items can be confirmed using the SET switch.
When normal: The number of S-LINK devices that the FP
Σ
S-LINK unit recognizes as
connected to it are displayed as a blinking display by the ADDRESS
display, and all of the addresses light in sequential order.
If an error occurs: All of the addresses for the S-LINK devices where errors have occurred
are displayed in sequential blinking displays (when ERR4 occurs) by the
ADDRESS display.
Note:
After confirming the above items, always return the system to the operation mode (RUN) side.
SET switch
When the RUN/CHK. selector switch is set to RUN:
Pressing the SET switch reads the connection status for the S-LINK system and stores it in the memory.
At this point, the number of the S-LINK devices is lighted for a given period of time by the
ADDRESS
display (if the same address has been specified for more than one S-LINK device, it is counted as one S-
LINK device). In subsequent operation, the FP
Σ
S-LINK unit checks for errors using the connection
status registered at this time.
(The output unit data effective at the time that the SET switch was pressed is retained.)
When the RUN/CHK. selector switch is set to CHK.:
When normal: Each time the SET switch is pressed, the number of S-LINK devices which the S-LINK
unit recognizes as connected to it is displayed as a blinking display by the ADDRESS
display, and all of the addresses light in sequential order, starting with the smallest (the
display is repeated).
If an error occurs: Each time the SET switch is pressed, all of the addresses for the S-LINK devices
where errors have occurred are displayed by the ADDRESS display in a sequential
blinking display, starting with the smallest (when ERR4 occurs).
Note:
If the RUN/CHK. selector switch is set to the RUN position and the SET switch is pressed while an error
is in effect, only the number of S-LINK devices that can be confirmed at that point are stored in the
memory. There is a possibility that S-LINK devices where the error has not been corrected will not be
recognized (if this happens, they will not be a target for the check).