Rockwell Automation 1760-xxxx Pico GFX-70 Controllers User Manual - Manual (Page 245)

Publication 1760-UM002B-EN-P - March 2005
Wiring with Pico GFX-70 4-135
Setting Date/Time
This function block allows you to selectively place the date and time onto the
network. All other stations accept the date and time of the sending station.
The function block name is SC01 (send clock).
Figure 4.59 Pico GFX-70 circuit diagram with SC function block
IMPORTANT
The following applies to the minimum on duration:
• The minimum on duration is the same as the minimum
off duration.
• The minimum on duration must not exceed 10% of the
period duration. The ratio of period duration/minimum
on duration (P/M) determines which percentage of the
manipulated variable has no effect. The minimum on
duration must be set as low as possible so that the P/M
ratio is as high as possible. If the minimum on duration
must not be too low, due to the output relay, the period
duration must be increased accordingly.
• The minimum on duration is 1 ms.
• If the actual value of the pulse length is less than the
minimum on duration, the minimum on duration has
the effect of the pulse time. Note the state of the
contact PW..E1.
• If the off duration of the pulse is less than the minimum
off duration, outputs Q1 and Q2 are continuously in
operation. Note the state of the contact PW..E1.
HW01QW1---------------------------[ SC01T