Serial buffer with up to 128mb or 2mb buff

4 x relay outputs 2 end and 2 switch
4 x insulated inputs
supply voltage: 10 - 30vdc
1 x RS485 communication port

8 digital outputs and 4 digital inputs
Open Collector Output
Photocouple Isolation
Digital input channels can be used as 16-bit counters
Configurable Power-on Value settings
Configurable settings for sure value
3750 Vrms insulation voltage
Dual Watchdog
Wide operating temperature range: -25 to + 75 ° C

4 x Digital input and 4 x relay output 
Form A and Form C Power relay
Source and Sink type of D/I
D/I the entries is also 16-bit counter
Configurable Power-on settings
Configurable Safe Value setting
Dual Watchdog
Temperature range -25 to + 75 ° C
Supply voltage: 10 - 30VDC
DIN bracket

8 digital contact inputs
8 digital outputs "Open source" from joint terminal
RS485 interface
DIN bracket
screw terminal