Rexroth Tightening System 350 System Documentation - Rhino ...

134/316 Bosch Rexroth AG | Tightening Technology 7 Data Services7.3 3964R communicationTable 7–24: Number of digits before and after the decimal point for measurement values (ASCII)Measurement/limit valuesNumber of digitsbefore decimalNumber of digits afterdecimalData element numberdisplay in ASCII format*Time t < 10 s 1 2 ____x.xxt < 100 s 2 2 ___xx.xxt < 1000 s 3 2 __xxx.xxt < 10000 s 4 2 _xxxx.xx* Spaces (20 hex) are displayed as underscores “_” in this table.** The number of digits before and after the decimal point for the torque and gradient depends on the maximumtorque for the tightening spindle.Outputting measurement values as binary numbersThe internal result values are scaled so that whole numbers are output. Scaling is done by dividing theresult values with the values from Table 7–25 on page 134. All binary numbers are output with 32 bits(4 bytes).The numbers are filed in “big-endian” format, i.e. the larger bytes are stored first.Table 7–25: 32-bit set decimal point formatValue Unit/resolution Value range * (theoretical)Time t 10 μs 0…42 949.67 s (≈12 h)Torque T 0.000 01 Nm ± 21 474.836 NmAngle of turn A 0.000 1 degree ± 214 748.36 degrees (± 596 rotations)Gradient G 0.000 000 1 Nm/° ± 214.74836 Nm/°Speed n 0.000 1 rpm ± 214 748 rpmForce (ultrasound) F 0.001 N 0 to 4 294 kN* The number of digits after the decimal point for the torque and gradient depends on the maximum torque for thetightening spindle (see Table 7–23 on page 133).NoteThe results output by the 3964R/RK 512 are usually absolute values.Exception: deviations of the actual value/redundancy value for torque and angle. These values are calculatedas Measurement value Primary transducer – Measurement value Redundancy transducer . A negative number isoutput if the measurement value of the redundancy transducer is greater than that of the primary transducer.System 350 | 3 608 878 040/05.2008