Emerson PACSystems RSTi-EP - 5.17 Digital Counter Module EP-5112

User Manual Section 5
GFK-2958L May 2021
Detailed Description of I/O Modules 214
5.16.7 Process Alarm Data EP-5111
Byte
Bit
Function
B0
X0.0
HW gate activated
X0.1
HW gate deactivated
X0.2
Overflow, underflow or end value reached
X0.3
Comparison value reached
X0.4
Latch value reached
X0.5 - X0.7
reserved
B1
X1.0
Status input channel 0 A (track A)
X1.1
Status input channel 0 B (track B)
X1.2
Status input "Latch"
X1.3
Status input "Gate"
X1.4
Status input "Reset"
X1.5- X1.7
reserved
B2
16-bit time stamp 0 ... 65,535
μ
s, rotating
B3
5.16.8 Setting Up the Counter
To start a counting process at least the signal mode needs to be parameterized and a rising
edge at the bit QX8.2 (“Set SW gate”) of the control word is required.
You can define the counter functions by parameterizing: the counting mode, a primary
direction (counting up or down), the counting behavior, and the hardware gate function
(input gate). In addition, you can parameterize output setting options (comparison
function, hysteresis) as well as producing a process alarm (refer to Section 5.16.10,