Read / write parameter offset, command „u“ (55h), Align current value with preset, command „z“ (5ah), N 140 – Baumer N 140 User Manual
Page 9: Example 2: write offset, Response in both examples, Current value, Preset offset + offset

N 140
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Response after reset upon deletion of all profiles:
SOH
Adr
Cmd Profile no. = FF EOT
CRC
Response
01h
20h
56h
3Fh
3Fh
04h
16h
Example 2: Transmit new profile (new profile number = 17)
SOH
Adr
Cmd Profile no. = 17 EOT
CRC
Transmission
01h
20h
56h
31h
37h
04h
3E
SOH
Adr
Cmd Profile no. = 17 EOT
CRC
Response
01h
20h
56h
31h
37h
04h
3E
Example 3: Transmit new profile by broadcast command to all N 140 (Identifier = 99 (83h); new profile no. =
17)
SOH
Adr
Cmd Profile no. = 17 EOT
CRC
Transmission
01h
83h
56h
31h
37h
04h
04
Response
Not confirmed
To check whether the new profile has been accepted by all N140 utilize check command „C“ (43h).
4.2.5. Read / write parameter offset, command „U“ (55h)
This command is to read or write the offset that is added to the true current value. First however the function
must be enabled in command bit parameter ‚a’ (61h).
Example 1: Read offset
SOH
Adr
Cmd
EOT
CRC
Transmission
01h
20h
55h
04h
26h
Example 2: Write offset
SOH
Adr
Cmd
data (offset = –20,00)
EOT
CRC
Transmission
01h
20h
55h
2Dh
30h
32h
30h
30h
30h
04h
C3h
Response in both examples:
SOH
Adr
Cmd
data (offset = –20,00)
EOT
CRC
Response
01h
20h
55h
2Dh
30h
32h
30h
30h
30h
04h
C3h
4.2.6. Align current value with preset, command „Z“ (5Ah)
The Z command is for setting the current value to any optional position. The required position value is
transmitted to the SPA. The SPA will calculate a so-called “preset offset” -value relating to the true absolute
sensor position. When calculating the preset offset any programmed offset transmitted by command “U” will be
considered, so that after having accomplished the “Z” command the current value always equals the preset.
The current value displayed is composed as follows:
Current
value
Anz
= current value
Abs
+ Preset offset + Offset
Current value
Anz
current value displayed and read out by interface
Current value
Abs
internal absolute current value.
Preset offset
Offset generated by command „Z“.
Offset
Additional offset defined by command „U“. This function however must be enabled in
command bit parameter ‚a’ (61h), otherwise offset = 0.
Example 1: Readout current preset
SOH Adr Cmd EOT CRC
Transmission
01h 20h 5Ah 04h 38h
SOH Adr Cmd
Preset = 2,50
EOT CRC
Response
01h 20h 5Ah 30h 30h 30h 32h 35h 30h
04h
27h