4 analog output and 4 digital input channels module
* 4 isolation analog output channel .
* 14 bits Analog Resolution
* Programmable voltage/current range with slew rate.
* 4 channels isolation digital input
* 3000 Vrms isolation voltage for A/O channel
* Programmable power-on value and safe value
* Programmable host watchdog timer for host failure protection.
* Support ASCII format and Modbus-RTU protocol