Bosch Rexroth Tightening System 350 - Page 276

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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 (see page 272):
• 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 6–32 to 6–39.
The quality code indicates the tightening evaluation and lists the causes of NOK tightenings if they occur
(see Quality code (page 206)).
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