Does the combination FP-1001 / FP-CTR-502 work with configurable network watchdog /power-up values for outputs?

[Detlef W]

I am using a FP-1001 module, some FP-AI-110 modules and one FP-CTR-502 module in one bank. The sources of the FP-CTR-502 output channels are counter channels (mode toggle, reset off) which are controlling other devices. I tried to use the configurable network watchdog value and also the power-up value for some of the FP-CTR-502 outputs but it didn't work. I changed the modules (because of defects), worked in Windows 2000 with FP 4.1 in MAX, with the older FP 3.0 and tried also in Windows 98 - all the same. If I break the network communication nothing happens and if I power up the bank the outputs follow immediately (after reset cycle of the module) the counter
s. If I set the factory configuration checkbox in the FP-1001 configuration table everything works fine - outputs stay in that configuratin (after powering up) until first communication.
Does anyone have experience for the combination FP-1001 with FP-CTR-502 and power-up/watchdog settings?"

[Aaron_G]

On the [c]FP-CTR-50x modules, when the channels are in Toggle Mode, power-up and watchdog value are ignored. Actually, the Toggle Mode, Reset Off option corresponds to having the channel set with the power-up value set to off and the Toggle Mode, Reset On corresponds to having the channel set with the power-up value set to on.

The watchdog values will only be used when the channel is set to Discrete.


Regards,
Aaron"

[Detlef W]

Aaron,
Thanks for your reply. Is there another way to use the power-up value when the output is set to discrete (or other settings) or not at all? Do you know how to set the CTR-502 output in LabView. Usually I create an item and then use FPRead or FPWrite or another VI to perform the operation. But for the output I can't do so because there is no possibility to create an item (FP-Expl. 4.1).

[Aaron_G]

The FP-CTR-50x modules used to have a limitation in which the power-up values on the outputs in discrete mode did not work. I do not know if the limitation was ever changed by NI.

You should be able to create a channel (the outputs are channels 12-15) and access it with the FP Read or FP Write VIs when the channels are configured in Discrete mode. You may be unable to create the channel because you have not changed the channel type. When creating the channels, there is a selection box that will have the channel types. For a [c]FP-CTR-50X module, these are Type 1: Counter Input, Type 2: Discrete Input. and Type 3: Discrete Output. Change the selector to Type 3, and you should be able to create the items for the output channels.

In the oth
er modes, the value you write will be ignored. If you try and create a multi-channel item (e.g. channels 12-15), then the value you need to write is a 16 bit number. If you want all of the channels on, you need to write a value of 61440 (0xF000) to the multi-channel item.

Regards,
Aaron