8. HIGH SPEED COUNTER MODULE CONNECTIONS B-61813E/03
8.2.4 External contact input
The pulse counter module uses insulating receivers (having a voltage
rating of 24 VDC) at the input ports. The following two types of signal
inputs are provided.
(1) Marker enable signal input (ME)
The contact of the marker enable signal is closed to make the
marker signal valid.
This enables data to be preset in the counter.
(2) Count stop signal input (CSP)
The contact of the count stop signal is closed to stop the count
8.2.5 External contact output
Solid state relays are used for the contacts.
(1) Mode A
The comparison mode signal outputs A, B, C (CMPA, CMPB, and
CMPC) are provided in mode A. These outputs indicate the
results of comparing the comparison registers A, B, and C with the
pulse counter. The comparison output values are determined
depending on whether the control mode signals (CMA, CMB, and
CMC) from the PMC are set to 1 or 0.
(2) Mode B
The results of comparing comparison register #0, comparison
register #1, ..., comparison register #15 with the pulse counter are
provided in mode B. The comparison output indicates the values
in the output data registers for the partitions in which the count
data is located. Eight output points are provided. (See Section
8.2.6 Marker processing
(1) Mode A
A. Synchronization with marker
The counter value is set to the data in the counter preset
register at the rising edge of the first marker signal with the
MS signal output from the PMC set to 1 and the contact of
the marker enable signal input (ME) from the machine
B. Marker hold
The MH signal is set to 1 at the rising edge of the first marker
signal with the MS signal output from the PMC set to 1 and
the contact of the marker enable signalinput (ME) from the
machine closed. The MH signal is reset when the marker