Pulse Counter Frequency Data Module 32 bit 1MHz Digital input output encoder input RS485 Modbus ADAM DIN Rail|rs485 rj45|express ieeers485 picture - AliExpress
S0 pulse counter with SNMP and Modbus/TCP | HW-group.com
4-way encoder pulse counter, 8-way DO, MODBUS TCP module [WJ96] - $59.00 : Wayjun Industrial Automation, 4-20mA to RS485|RS-485 to 0-5V|Pt100|0-10V|RS232|0-75mV|0-100mV|DC DC converter|Signal Isolator|Conditioner|Analog to Digital Converter|DC-DC
S0 pulse counter with MODBUS RTU interface - TDI340
MOD-16I - RS485 Modbus 16 Channel Digital Input with Pulse Counting RTU - www.audon.co.uk
S0 Pulse Counter Counter with Modbus Interface | Meter Accessories | Metering Devices | Field Devices | Meter Accessories | Honeywell Building Solutions
S0 pulse counter with MODBUS RTU interface - TDI340