Programming Digital Inputs And Outputs; The Pico-Plc - Parker SLVD1N User Manual

Table of Contents

Parker Hannifin S.p.A S.B.C. Division

11.PROGRAMMING DIGITAL INPUTS AND OUTPUTS

11.1.

The internal pico-PLC is used to connect the external world (inputs/outputs) with the world of the

parameters of the SLVD-N. The PLC can be used to copy digital input to a binary parameter, to copy a

binary parameter to a digital output and to execute mathematical and Boolean operations. The PLC

program must be inserted as a list of instructions by using the keyboard or by the serial line using a PC

and an interface program. A PLC program (see Appendix F) written to meet the needs of a large

number of applications corresponds to the default parameters (b99.12). In most cases it is not

necessary to program the PLC itself. The main features of the pico-PLC are:

program steps

scanning time

number of timers

number of instructions

stack depth

mathematical operations

fast inputs

PLC PARAMETERS

Par.

Pr71

Constant value = -1. Double word.

Pr72

Constant value = 0. Double word.

Pr73

Constant value = 1. Double word.

Pr74

Constant value = 2. Double word.

Pr75

Constant value = 10. Double word.

Pr76

Constant value = 100. Double word.

Pr77

Constant value = 1000. Double word.

Pr78

Constant value = 1024. Double word.

Pr79

Constant value = 4096. Double word.

Pr80