Rexroth Tightening System 350 System Documentation - Rhino ...

7 Data Services Tightening Technology | Bosch Rexroth AG 135/3167.3 3964R communicationExampleA 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+3Value 50 1f 45 00In contrast, the output in the byte stream listed below should be interpreted as follows:Byte n n+1 n+2 n+3Value 70 5f bc 00= 00 bc 5f 70 (hex)= 00000000101111000101111101110000 (binary)= 12345200 (decimal)= 12345200 * 0.0001 degree= 1234.52 degreesNoteAlthough binary numbers can be more accurate (e.g. 5 digits after the decimal point for torque) only theinternally rounded floating decimal point value is scaled; the other digits after the decimal point are filledin with “0”.Tightening resultsThere are three different possible formats (see page 131):– Binary format (result values as binary numbers with 32 bits)– ASCII format (result values as floating decimal point numbers in plain text)– ASCII format (format 2) (result values as floating decimal points with a specific format)The results are described in Tables 7–26 to 7–28. The quality code indicates the tightening evaluationand lists the causes of NOK tightenings if they occur (see page 80).Table 7–26: Results (binary format)Rel. byte address Length Format Contents0 1 Int8 Rack/slot no. 0rrr rsss Bin Rack no. rrrr (0-15), slot sss (1-5) e.g.10.3 → 0101 0011 Bin = 53 hex1 1 Int8 Tightening program no.2 1 Int8 Result (1 = OK, –1 = NOK, 0 = invalid)3 1 Int8 Quality code4 3 ASCII Line/column of the results step (e.g. “3A”)7 1 Int8 Reserve (00 hex)8 2 Int16 Year (1900 -)10 1 Int8 Month (1 to 12)11 1 Int8 Day (1 to 31)12 1 Int8 Hour (0 to 23)13 1 Int8 Minute (0 to 59)Total: 136 bytesSystem 350 | 3 608 878 040/05.2008