Siemens 3RK1200-0CG03-0AA2 AS-I SlimLine Counter Standard Slave Digital I/O Module

The counter module is used to send hexadecimal coded count values (LSB=D0, MSB=D3) to a higher-level controller. The count value is increased by one for each valid count pulse at terminal 8. Beginning at 0, the module counts up to 15 and then begins again at 0. The controller adopts the current value and determines the number of pulses between two host invocations through subtraction from the previous value. The total number of count pulses is determined by adding these differences. For the values sent to be unambiguous, no more than 15 count values are allowed between two host invocations or AS-Interface master invocations at terminal 8. The maximum permissible transmission frequency is calculated from these times: fTrmax = 15/Tmax, Tmax: maximum possible transmission time from the slave to the host.

Siemens Digital I/O Module, Counter Standard Slave, Series: AS-I SlimLine, Spring Loaded Terminal, -25 to 70 deg C, 22.5 mm W x 86 mm D x 103 mm H Dimensions