V-TEK OEM TM-50 SMD, User Manual

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6174007.fm Using the Vision Port
Chapter 2: Controller 25
Using the Vision Port
It is simple to use a vision system with the TM-50. Connect as indicated by the diagram shown in
Figure 2.30. All input and output from this port is open collector/drain. Signals are referenced to
the 0V ground pin (DB9-5).
Vision I/O Receptacle
1. INPUT: BUSY Signal
2. Not Used
3. INPUT: Part PASS/FAIL Signal
4. OUTPUT: TRIGGER (Start of Test)
5. Signal Ground
6. 24V DC
7. Not Used
8. Not Used
9. Not Used
Note : Beginning with Software Revision 1.74, the TM-50 will respond as indicated below.
Vision Mode 1
1. The TM-50 will pull the TRIGGER signal (DB9-4) low.
2. The TM-50 will now wait until the vision system returns a BUSY signal (DB9-1) by pulling low.
This indicates to the TM-50 that the vision has begun a test sequence.
3. Once the BUSY signal is seen, the TM-50 will release the TRIGGER signal.
4. The TM-50 will now wait until the BUSY signal is returned high. When it is returned, the TM-
50 will inspect the PASS/FAIL signal (DB9-3) to determine if the part has passed. A logic low on
this signal will be interpreted as a FAIL.
Note : A screen will appear if a failure is seen. Correct the problem and then press ENT to
retest the part, or press ESC to accept the part, count it, and move on.
It is important to note that if the BUSY signal is not received as indicated in Step 2, the TM-50 will
remain in a BUSY state and the TRIGGER signal will remain low. This may occur if there is a
vision system failure or if the vision is not turned ON. Correct the problem, then press any key on
the keypad, and the TM-50 will release the TRIGGER and move on.
1 2 3 4 5
6 7 8 9
VISION PORT
Figure 2.30
1 2 3 4 5
6 7 8 9