Baumer N 143 - Manual (Page 22)

N 143
22 www.baumer.com
4.3.7. Read / write measuring unit „i“ (69h)
The command reads or writes the measuring unit in mm or inches.
Data = 0 (30h) = mm
Data = 1 (31h) = inch
Example 1: Read parameter (= mm)
SOH Adr Cmd EOT CRC
Transmission
01h 20h 69h 04h 5E
SOH Adr Cmd Data EOT CRC
Response
01h 20h 69h 30h 04h D0h
Example 2: Change measuring unit into inches
SOH Adr Cmd Data EOT CRC
Transmisison
01h 20h 69h 31h 04h D2
SOH Adr Cmd Data EOT CRC
Response
01h 20h 69h 31h 04h D2
Example 3: Write measuring unit mm in all SPAs by broadcast command (address=99)
SOH Adr Cmd Data EOT CRC
Transmission
01h 83h 69h 30h 04h CDh
Response not confirmed
Important:
Parameters are entered in mm and auto-converted into inches by the SPA upon displaying the position values.
4.3.8. R ead / write timeout at bus error RS485 „j“ (6Ah)
This command reads or writes the system time: Timeout reply at bus error. Value range is within 00.1 s to
99.9 s. Tolerance: ±7% at minimum time; < 1‰ at maximum time, approx. 1 % at 1 s.
Functionality: RS485 bus monitoring during motive shaft positioning operations. If there is no interface activity
within the programmed timeout the motor will stop (EMERGENCY OFF) in case of bus error or inactive master.
Motor restart requires transmission of the profile (command „S“ or „V“) including the start signal (command „D“).
Setting 0.00 s means function disabled.
Example 1: Read parameter (time= 2.5 s)
SOH Adr Cmd EOT CRC
Transmission
01h 20h 6Ah 04h 58h
SOH Adr Cmd Time =2.5 s EOT CRC
Response
01h 20h 6Ah 30h 32h 35h 04h C5h
Example 2: Write parameter (time = 13.5 s)
SOH Adr Cmd Loop =13.5 s EOT CRC
Transmission
01h 20h 6Ah 31h 33h 35h 04h C9h
SOH Adr Cmd Loop =13.5 s EOT CRC
Response
01h 20h 6Ah 31h 33h 35h 04h C9h