Introduction

The ETS-7200 series is a web-based Ethernet I/O module equipped with a built-in web server (http/https) allows the user to configure module and control/monitor the status of digital I/O by simply using a regular web browser.

The ETS-7200 series offers easy and safe access for users from anytime and anywhere! In addition, it also supports Modbus security (TLS) protocol that makes improve the network security.

TLS/DTLS 1.2 support (RFC 5246) to introduce a more reliable industrial application, protect manufacturing data and equipment. An IP address filter is also included, which can be used to allow or deny connections with specific IP addresses.

The ETS-7200 Series has a built-in two-port Ethernet switch to implement daisy-chain topology. The cabling is much easier and total costs of cable and switch are significantly reduced.

LAN Bypass feature guarantees the Ethernet communication. It will automatically active to continue the network traffic if any one of the ETS-7200 looses its power.

Improving DoS attacks protection. Detection, prevention and mitigation of DoS attacks that aim it.

The Modbus/TCP, Modbus/UDP slave function on the Ethernet port can be used to provide data to remote SCADA software.

 

Various I/O components are mixed with multiple channels in a single I/O module, which provides the most cost effective I/O usage and enhances performance of the I/O operations.

 

The Dual Watchdog is consists of a Module Watchdog and a Communication Watchdog. The action of AO,DO are also associated to the Dual Watchdog.

Module Watchdog is a built-in hardware circuit to monitor the operation of the module and will reset the CPU if a failure occurs in the hardware or the software. Then the Power-on Value of AO,DO will be loaded.

Communication Watchdog is a software function to monitor the communication between the host and the I/O module. The timeout of the communication Watchdog is proprgrammable, when the I/O doesn't receive commands from the host for a while, the watchdog forces the AO,DO to pre-programmed Safe Value to prevent unpredicatable damage of the connected devices.

 

This function is used to create a AI/DI to AO/DO pair through the Ethernet. Once the configuration is completed, the I/O module can poll the status of remote AI/DI devices and then use the Modbus TCP protocol to continuously write to a local AO/DO channels in the background. 

Besides setting by the set AO,DO commands, the AO,DO can be set under two other conditions.

Power-on Value: The Power-on Value is loaded into the AO,DO under 3 conditions: Power-on, reset by Module Watchdog, reset by reset command.

Safe Value: When the Communication Watchdog is enabled and a Communication Watchdog timeout occurs, the “safe value” is loaded into the AO,DO.