Universal Device Driver Reference Manual

1.397 NAIS-FP-Pulse-Output

This page describes the device driver and the device window for the NAIS-FP-Pulse-Output device. This device controls one single output port of a NAiS/Matsushita PLC. The output ist activated for a defined time everytime when an arbitrary position command arrives at the device.

Multiple devices of this type (and other members of the NAIS-FP-* -family) may refer to one single PLC device. To do so, configure these devices to share the serial interface of the PLC and set the configuration parameters of each particular switch/monitoring device to the same PLC (address) but to individual ports.

Device window pages

The following table shows which device window pages are available with this individual device type. Tool-bar functions not mentioned here are described at the general description of device windows .

--- Commands the switch position. In a task-oriented user interface the NAIS-FP-Pulse-Output usually will be bound to a button which starts a pule at the output when pressed. Here, with the standard user interface for switchtes, you have to enter an arbitrary value to the 'position' text field.
--- The faults page.
--- The device info page.
--- The maintenance page. The configuration parameters described below are set at this page.

Configuration parameters

At the maintenance page of the device window there are a couple of configuration parameters which must be set to make the software talk to the alarm monitoring input at the PLC.

parameter	description
address	The packet address of the PLC device. Usually this is "01".
port	The address of the output port to control.
pulse	The pulse duration (seconds). Be aware, that during the pulse time all polling of inputs at this PLC device is paused!
Serial	Remember to set the line parameters for the serial interface connected to the FPx PLC device. It requires the somewhat unusual setting 9600,O,8,1 . With multiple NAIS-FP-* -devices referring to the same PLC, the line speed needs to be setup only once.

Remarks

The device address of a FPx PLC usually is "01" (two digit, the leading zero is mandatory).
Port addresses used with the PLC are 4 digit hex numbers (upper case digits 'A'..'F', always padded to 4 characters with leading zeroes). The ports on a FPx device itself start at "0000" (inputs and output use their own address spaces). See the PLC manual for the addresses of I/O ports located at extension modules.
The FPx PLC must be switched to "RUN" mode. It will not reply in "PGM" mode.
The M&C software uses the PLC as a "dumb" I/O device. It assumes that no program is loaded to the PLC (you can use it "out of the box"). If you need to run a program on the same PLC device anyhow, ensure that the program does not access the same I/O registers the M&C addresses.
The NAIS-FP-Pulse-Output device does not read back a switch state. The output is assumed to normally deactivated.

Variables defined by this device driver

name	type	flags	range
info.driver	TEXT	R/O	StringRange R/O
lowLevel.cmd	TEXT		StringRange
lowLevel.reply	TEXT	R/O	StringRange R/O
faults.99	ALARM	R/O	AlarmFlagRange R/O (Communication)
faults.commstat	TEXT	R/O	StringRange R/O
info.type	TEXT	R/O	StringRange R/O
info.port	TEXT	R/O	StringRange R/O
info.frame	TEXT	R/O	StringRange R/O
config.port	TEXT	SAVE SETUP	StringRange
config.pulse	FLOAT	SAVE SETUP	DoubleRange (0.0 .. 2.0)
position	TEXT	NOPRESET	StringRange