one. PLC control cabinet placement must be reasonable and non-floor room of the installation can not be directly installed, you need to set up installation, the cable channel from the PLC cabinet must wear a tube. Do not make the tube at right angles (with the required curvature) or not easy threading.
two. Cable release control cables as far as possible a unified model, clearly marked, if the cable clutter a pretty two difficult to identify. The location of the cable into the card with the number needed to write clearly, it is recommended not to use tape, paper label marked with easily damaged. Cable wires have the correct line number, or if there is no error will lead to extend the duration of future maintenance problems.
three. If the wiring process control equipment as the best way to unify all the wiring, such as the common line 1, 2, 3 control lines, and so on. Number of tube wiring to do before then as stated in the equipment for future maintenance.
four. Control and feedback cables Do not use a cable, as used separately, if necessary with a shield grounding leads.
V. Smart devices and the PLC communication cable network cable should not be placed, on-site commissioning of cable in the cable channel that the more easily damaged, so easy to cause secondary construction.
six. Whether it is software or hardware installation commissioning personnel must follow the programming and on-site construction drawings, there is no single standard approach when debugging software personnel will staff a great deal of trouble debugging. If there are any changes need to install the hardware and software personnel prior consultations in order to modify the program.
seven. Whether it is laying cable or fiber optic cable needs to have a margin.
eight. Related to the Ethernet communication, if the relatively short distance communication less than 100 meters,journal, the cable can be used, although in theory can access lines of communication to one hundred meters away from the scene, but many factors have led to can not properly communicate. It is proposed 100 meters above use optical fiber communication.
nine. In the upper and lower need to follow when writing code point allocation map the PLC to write data connection table, but sometimes the PLC point map is not accurate, so the need to side with on-site construction communication and understanding of the scene right point.
ten. DATALINK table in the production should be carefully checked to avoid to the scene after the discovery of a problem, as there will be great when debugging problems. Allocated between the various PLC data space needs to be large enough margin left to avoid adding new equipment in the field can not fill added.
XI. Necessary for the control equipment to the scene, if only the experience of writing code in accordance with the original to the site and may not meet the control requirements. In particular, some relatively large number of devices.
XII. The code finished in the company after which the need for all aspects of the test, except for some must live in order to detect the code. Testing must also be careful, that problems can be solved in time onto the scene then changes, so will only cause unnecessary trouble for themselves.
XIII. Should be indicated in the program notes for each address. For later debugging and maintenance.
check what the best approach to debug the former site of the actual situation to meet the construction interface. Including the hardware is in place, installed correctly
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