Rockwell Automation 1760-xxxx Pico GFX-70 Controllers User Manual User Manual
Page 183
Publication 1760-UM002B-EN-P - March 2005
Wiring with Pico GFX-70 4-73
10.
actual value equal to zero
11.
out of value range
• Range A:
–
The counter has the value zero.
–
The contacts C..ZE (actual value equal to zero) and C..FB (lower set
point value undershot) are active.
–
The counter receives counter values and increases the actual value.
–
C..ZE drops out as well as C..FB and also when the lower set point
value is reached.
• Range B:
–
The counter counts upwards and reaches the upper set point value.
The “upper set point value reached” contact C..OF becomes active.
• Range C:
–
The coil C..SE is briefly actuated and the actual value is set to the
preset actual value. The contacts go to the respective position.
• Range D:
–
The counting direction coil C..D_ is actuated. If counting pulses are
present, downward count is initiated.
–
If the lower set point value is undershot, the contact C..FB becomes
active.
• Range E:
–
The reset coil C..RE is activated. The actual value is set to zero.
–
The contact C..ZE is active.
• Range F:
–
The actual value goes outside the value range of the counter.
–
The contacts become active according to the direction of the values
(positive or negative).