The
unit table contains the look-up value.
Figure 1. Output from Function Code 7 (Convert Device Type to Look-up
Value)
The conversion of the device type to a look-up value is done in place. There is no error checking of the device type.
Register
15 contains one of the following return codes:
- Code
- Meaning
- 0
- Processing is successful.
- 4
- The input device type is not valid; no look-up value is returned.
- 28
- The required input is not specified or is not valid.