4-ch ISO DI and 4-ch relay Output with LED display * Support 4 isolated digital input channels * Input channel support max. 50Hz counter * Support 4 relay output channels(RL1~RL4) * RL1,RL2: Form A, RL3,RL4: Form C * Programmable Host Watchdog Timer For Host Failure Protection. * Support MODBUS And ASCII Format Protocol
