276
Bosch Rexroth AG
| Tightening Technology
3 608 878 300
System 350
| 3 608 878 300/2019-03
Results of tightening applications
The result of a tightening application consists of the application result (
OK,
NOK) from the process on
the communication unit and the tightening position results of the participating channels (max. 40).
There are three different possible formats
:
•
Binary format (results values as binary numbers with 32 bits)
•
ASCII format (results values as floating decimal numbers in plain text)
•
ASCII format (format 2) (results values as floating decimal points with a specific format)
The individual partial results for the tightening application result are described in Tables
to
.
The quality code indicates the tightening evaluation and lists the causes of NOK tightenings if they occur
(see
Binary format
Example
A torque value of 45.3 Nm is displayed as follows:
45.3 Nm / 0.00001 Nm
= 4530000 (decimal)
= 00000000010001010001111101010000 (binary)
= 00 45 1f 50 (hex)
and thus as follows in the byte stream of the results output:
Byte
n
n+1
n+2
n+3
Value
50
1f
45
00
In contrast, the output in the byte stream shown below should be interpreted as follows:
Byte
n
n+1
n+2
n+3
Value
70
5f
bc
00
= 00 bc 5f 70 (Hex)
= 00000000101111000101111101110000 (binary)
= 12345200 (decimal)
= 12345200 * 0.0001 degrees
= 1234.52 degrees
Although the binary numbers might reach a higher level of accuracy (e.g. 5 digits after the decimal point
for torques), only the internally rounded floating decimal value is scaled accordingly; additional digits after
the decimal point are filled with "
0
".
Table 6–32:
Application result (binary format)
Rel. byte address
Length
Format
Contents
0
1
Int8
Application no.
1
1
Int8
Result (1 = OK, –1 = NOK, 0 = invalid)
2
1
Int8
Quality code
3
1
Int8
Reserve (00 hex)
4
2
Int16
Year (1900 -)
6
1
Int8
Month (1 to 12)
7
1
Int8
Day (1 to 31)
8
1
Int8
Hour (0 to 23)
9
1
Int8
Minute (0 to 59)
10
1
Int8
Second (0 to 59)
11
1
Int8
Reserve (00 hex)
Total: 78 bytes
Summary of Contents for Rexroth Tightening System 350
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