The 2505 Vibration Sensor Interface Module provides four vibration inputs to the CTI 2500 Series® or Simatic® 505® I/O base. The module is configurable to interface to accelerometers, velocity probes, or proximity probes plus a tachometer input.
The 2502 is a high-speed counter module designed to count incoming pulses from external sensors and provide process control outputs based on count status.
The 2554-A is an isolated 4-channel high-speed counter input module. Each channel can operate in one of three selectable modes: frequency, period, or general counter. In addition, two channels may be configured together for quadrature mode operation.