Siemens controller/POL638.00/DH1

Siemens controller/POL638.00/DH1-Detailed introduction: POL638.00/DH1 (unmanned aerial vehicle interface, can be connected to POL895.51/STD human-machine interface (HMI) Chinese display, POL8T7.50/STD 5.7-inch color touch screen, and POL8T7.80/STD 15 inch color touch screen), POL638.70/DH1 (built-in human-machine interface can be connected to POL895.51/STD human-machine interface (HMI) Chinese display, POL8T7.50/STD 5.7-inch color touch screen, and POL8T7.80/STD 15 inch color touch screen) is specially designed for HVAC, refrigeration, and district heating, with a direct digital controller (DDC) with measurement, control, and monitoring functions, and an upgraded substitute for ACX32.000/LG

Siemens controller/POL638.00/DH1

Has the following features: · Freely programmable (SAPRO) · Object oriented graphical editing tool (SAPRO) · Can be extended by connecting local or remote I/O expansion modules through peripheral device bus · Power supply is AC 24V or DC 24V · 8 general-purpose I/O (configurable for analog or digital signal input/output) · Onboard DC 24V power supply is used to power active sensors · 5 digital inputs (passive inputs) · 2 analog outputs (DC 0... 10 V) · 6 relay outputs (normally open contacts)

·Onboard RS-485 interface supports Modbus RTU mode · Full mode modem RS-232 port for remote services · Process bus supports indoor temperature controller and remote HMI (DPSU) · Multiple configurable 3 enhanced communication modules, supports BAS building system integration · Local service interface supports human-machine interface (RJ45) and PC service tool (USB) · SD card for application and operating system upgrades · LON fieldbus (only applicable to POL636.00) · Ethernet port for remote or local services, compatible with standard browsers (only applicable to POL638.00) · Operating temperature -20... 60 ° C (-40... 70 ° C if there is no built-in LCD-HMI)