Rockwell Automation 1760-xxxx Pico GFX-70 Controllers User Manual - Manual (Page 262)

Publication 1760-UM002B-EN-P - March 2005
4-152 Wiring with Pico GFX-70
2: stop coil T..ST
3: reset coil T..RE
4: switching contact (make contact) T..Q1
• Range A:
The relay flashes for as long as the Trigger coil is activated.
• Range B:
The Stop coil interrupts the timing out of the set time.
• Range C:
The Reset coil resets the relay.
Value Limitation
Pico GFX-70 provides 32 value limitation function blocks VC01 to VC32. The
value limitation function block allows you to limit values. You can define an
upper and lower limit value. The function block will then only output values
within these limits.
Wiring of a Value Limitation Function Block
You can integrate a value limitation function block into your circuit as a coil.
Figure 4.76 Pico GFX-70 circuit diagram with VC value limitation
M 48----------------------------[ VC27EN
VC27 +
>I1
>SH
>SL
QV>
Table 4.77 Parameter display and parameter set for the VC function block
VC27 VC value limitation function block number 27
+ Appears in the parameter display
>I1 Input value
>SH Upper limit value
>SL Lower limit value
QV> Output value limited