Saia PCD1 Controller Maintenance Guide

When the controller clock is inaccurate or the retention data is lost, the CR2032 battery needs to be replaced. Steps:

Disconnect the power supply.

Open the battery compartment cover (located on the front or side).

Remove the old battery and immediately install a new battery (model CR2032, recommended to use Renata or Panasonic).

Reset the date and time after powering on.

5.3 Replacement of discontinued models

If PCD1.M2020 (without Ethernet) is discontinued, M2120 (with Ethernet added) can be used and network functions can be disabled without any program changes. If PCD1.M2110R1 is discontinued, M2160 can be used in combination with a dedicated analog expansion module (such as PCD7.W600) and a PCD2.Fxxxxx communication module to simulate the original room controller function, but some I/O mappings need to be rewritten.

Program compatibility: PG5 programming software supports all PCD1 series, simply change the CPU type in project settings, compile and download. Pay attention to the differences in memory capacity between different models: when migrating from M2020 to M2160, the original program can run directly; Reverse migration requires ensuring that the program does not exceed 512kB.

5.4 Firmware Upgrade

New features or bug fixes are implemented through system firmware updates. Use PG5's' System Firmware Update 'tool to load the. s19 file via USB or Ethernet. Before upgrading, it is necessary to backup the user program.