本人愿和同道中人共同探讨西门子技术范围包括(200/300/400/Wincc/Hmi)
技术文章参考博客! http://jiansiting.gkbk.com
to zf6322 , About S7-200‘ SF led is light .The following list describes the most common causes:
*User programming error
– 0003 Watchdog error
– 0011 Indirect addressing
– 0012 Illegal compare
*Electrical noise
– 0001 through 0009
*Component damage
– 0001 through 0010
Read the fatal error code number and refer to
Section C.1:
*For a programming error, check the usage of the
FOR, NEXT, JMP, LBL, and CMP instructions.
*For electrical noise:
– Refer to the wiring guidelines in Section 2.3. It
is very important that the control panel is
connected to a good ground and that high
voltage wiring is not run in parallel with low
voltage wiring.
– Connect the M terminal on the 24 VDC Sensor
Power Supply to ground.