info@macol.co.uk
PCA1 Series controllers
PCA1 programmable controller
Although now obsolete some spares and replacement processors are still available either directly from MACOL or from another source that we may be able to help you locate.
For customers wishing to update to a modern controller we are able to reverse engineer undocumented software and re-write it for the replacement system. This is often the most cost-effective solution offering like-for-like functionality with minimum downtime.
The manual for the PCA1 series is available for download as a PDF file here.
The PCA1 series divides into two base models - PCA14 and PCA15 - and each model can be configured with either four or eight input and output modules that can be arranged as desired.
PCA15
Microprocessor: 8085-2
Average cycle time per instruction: 70µS
Instruction level set 1H: 32 basic instructions plus 20 additional including arithmetic
Number of parallel programs: 16
Number of index registers: 16 (one per program)
Number of subroutine levels: 3
Inputs and outputs: 32, 64 or 128 according to the housing size
PCA14
Microprocessor: 8085-2
Average cycle time per instruction: 70µS
Instruction level set 1H: 32 basic instructions plus 20 additional including arithmetic
Parameter functions: PID loops, shift registers, check sum, interrupt management
Number of parallel programs: 16 (15 for interrupt control)
Number of index registers: 16 (one per program)
Number of subroutine levels: 3
Inputs and outputs: 32, 64 or 128 according to the housing size