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The CIO-EN communications module is a convenient and cost-effective Modbus/TCP and Modbus/RTU interface capable of providing discrete control and monitoring of a 777 Plus Series overload relay/power monitor over a network. This device can also be used as a stand-alone device in MCC or enclosed starter applications.

SymCom Model CIO-EN Communications Modules Distributors

Model CIO-EN

Installation Instructions

The CIO-EN is an I/O module that provides four (4) digital inputs and two (2) AC/DC rated relay outputs. It can be DIN rail mounted or mounted directly to a back panel. The CIO-EN's compact size, ease of wiring and Modbus communications capability makes the use of traditional discrete devices on Modbus cost effective and simple.

If you are looking for SymCom CIO-EN Communication Module, please call us on (800) 894 - 0412 or email us at we will do our best to help you find the CIO-EN MODBUS/RTU modules that you are looking for at the most competitive prices possible. If you are searching for CIO-EN MODBUS/TCP module technical information (data-sheets) please use the datasheets or product selection guide page links.

The CIO-EN is designed to provide the following benefits in both new and existing installations:

  • Reduced field wiring
  • Greater operator efficiency
  • Ease in system startup and commissioning

The CIO-EN Module is compatible with SymCom's Model 777 Plus Series power monitors/overload relays. It simply connects to the side of the 777 Plus Series unit and, in addition to the extended I/O functions, permits remote monitoring and control of the 777 Plus Series unit over an Ethernet/RS-485 network. An additional remote reset input is available on the CIO-EN to reset a connected 777 Plus Series unit.

The CIO-EN also possesses a Modbus message assembly feature. The user can configure a block of registers for periodic block reads which minimizes the memory requirements in the scanning device, PLC or SCADA system. It also simplifies the software because all of the data brought back in the device poll is used.

The CIO-EN Module is 10Base-T Ethernet compatible, meaning it is capable of transmitting data at a maximum rate of 10 Megabits/second. TCP/IP Protocols supported by the CIO-EN include:

  • Modbus/TCP
  • HTTP for an embedded webpage
  • FTP for data logging
  • ICMP (ping)
  • DHCP for automatic IP assignment

The CIO-EN can be re-configured prior to installation to work with the standard (Legacy) 777 power monitor/overload relay using the "CIO-EN/CIO-MB - 777 Configuration Software" tool available at SymCom website. Because the CIO-EN was designed to work seamlessly with the 777 Plus Series, re-configuring the device will cause diminished use of the embedded web page and loss of FTP for data logging capabilities.

Our industrial factory automation supplies distributors warehouse in Boise, Idaho stocks some SymCom products enabling us to further assist you in finding the correct model CIO-EN communication module for your application in the Pacific Northwest USA. We can proudly say that we carry more SymCom/SSAC/Littelfuse in stock than any other SymCom distributors in the Pacific Northwest region. Whether we have model CIO-EN MODBUS/TCP I/O modules in stock in Boise, Idaho or need to get them from SymCom; Clearwater Tech can get CIO-EN MODBUS/RTU module to you fast and save money! It will be very helpful if you have the SymComp CIO-EN I/O module part numbers ready, then our sales representatives can provide you with a pricing and availability quote for CIO-EN MODBUS/TCP communication modules that you are looking for in seconds. If you do not have the part numbers for CIO-EN MODBUS/RTU modules, our application engineers will be able to help you figure out the part numbers and get the price quote to you as soon as possible.

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