When numbering with PLC data, only those devices are numbered whose main function is included in the range of numbering. The matching auxiliary functions are always also numbered.
Functions numbered with data from a PLC connection point are flagged and can optionally be excluded from normal DT numbering, terminal numbering, etc.
Devices connected to PLC connection points can accept components of the PLC address into the DT:
- On a PLC output, the DT of a function is changed if it is a main function and the corresponding connection point is an actuator.
- On a PLC input, the DT of a function is changed if it is a main function and the corresponding connection point is a sensor.
- For terminals and pins, not the DT but the terminal or pin designation is modified. You specify separate format settings for the numbering.
- PLC connection points and PLC boxes are not numbered. Nested components, as well as graphical and external components, are also not numbered.
Numbering on terminals or pins connected to a PLC
Terminals or pins between a PLC connection point and the corresponding sensor or actuator can be designated with the address or connection point designation of the PLC connection point. In this way, you can create designations corresponding to the GOST standard.
Example:For a terminal connected to input E10.4, depending on settings, the following terminal designations are possible:
E10.4
X1:E10.4
X1:10.4
X1:104
Break the PLC address into layers
In the settings for numbering formats, you can access individual components of the PLC address. The address is broken down into different levels.
|
Property |
Contents |
|---|---|
|
1st level of address |
From right to left up to the first separator (bit). |
|
2nd level of address |
From right to left up to the second separator (byte). |
|
3rd level of address |
From right to left up to the third separator (PLC card / slot). |
|
4th level of address |
From right to left up to the fourth separator (device / network node). |
|
5th level of address |
From right to left up to the fifth separator (network strand). |
|
Prefix |
From left to right, the letters until the first separator or the first digit. All characters are interpreted as separators which are not letters or digits (e.g. %). |
The numbering format can be composed of different components of the PLC address, like "Entire PLC address", "Byte", "Bit", "Separator", or "Prefix".
See also
Numbering on Devices Connected to PLC