VIPA SSM-BG41 - Fig. 3-33: Allocation of Terminal Pins When Using a 5 V Counter Module

Manual BG41/BG42/BG43 Interface modules
Rev. 99/49 3-35
3.2.8.4 Allocation of 5V counter’s terminal pins
Fig. 3-33: Allocation of terminal pins when using a 5V counter module
Description of Signals:
Earth : Supply voltage output
+5V : Supply voltage output
CYa/BWa : Carry or borrow output of counters 1, 2 or 3
active: high - max. 5V, 100mA
inactive: high-impedance
UAxa- : Counter input 1 or 2 for counter 1, 2 or 3
active: low - TTL or RS 422 level
UAxa : Counter input 1 or 2 for counter 1, 2 or 3
active: high - only connect by differential drives
(RS 422), otherwise leave open
UA0a : Reset counters 1, 2 or 3
active: high - TTL or RS 422 level
UA0a- : Reset counters 1, 2 or 3
active: low - only connect by differential drives
(RS 422), otherwise leave open
If UA01(pin 10), UA02 (pin 6) and UA03 (pin 2) are not used, they must be
earthed!