Nexen RSTC1000 964523 - Manual (Page 8)

5 FORM NO. L-21208-C-0908
M
ODBUS
C
OMMUNICATION
P
ARAMETERS
Writing to registers 15-18 changes the communication parameters. New paramter values take effect immediately
after writing to register 19, or after turning the RSTC1000 power off and back on.
15: Baud Rate Sent as integer, read & write. Supported baud rates are 4800, 9600, 14400, 19200, 38400,
56000).
Example:
19200
Register 15: 75 (msb), 0 (lsb)
19200 = (75 * 256) + 0
16: Device Address Sent as integer, read & write. Address values are 1–247.
Example:
24
Register 16: 0 (msb), 24 (lsb)
17: Parity Sent as integer, read & write. Parity values are 1 = even, 2 = odd, 3 = none.
Example:
3
Register 17: 0 (msb), 3 (lsb)
18: Stop Bits Sent as integer, read & write. Stop Bit values are 1 = 1 stop bit, 2 = 2 stop bits.
Example:
2
Register 18: 0 (msb), 2 (lsb)
19: Remote Communications Reset Sent as integer, write only. Writing a 1 will cause RSTC1000 to begin using
updated communication parameters immediately. Reading this variable will return a zero.
Example:
1
Register 19: 0 (msb), 1 (lsb)
D
IAGNOSTICS
30: Alarm Status Sent as integer, read only.
Web Break : value = 128, total loss of web tension.
No Control : value = 72, control signal output has reached 0% or 100% during automatic operation and web tension
is not at set point.
High Tension
: value = 64, web tension is greater than the high-tension limit.
Low Tension : value = 32, web tension is less than the low-tension limit.
Max Output : value = 16, control signal output has reached maximum output limit, typically 100%.
Min Output : value = 8, control signal output has reached minimum output limit, typically 0%.
Example: 32
Register 30: 0 (msb), 32 (lsb)
31 - 32: Load Cell 1 Tension Floating point number sent as long integer * 1000 in units of lbs, read only, tension
range is 0.000 to 10,000.000 lbs.
Example: 543.812 lbs
Register 31: 8 (msw)
Register 32: 19524 (lsw)
Load Cell 1 Tension = ((8 * 65536) + 19524) / 1000 = 543.812 lbs
33 - 34: Load Cell 2 Tension Floating point number sent as long integer * 1000 in units of lbs, read only, tension
range is 0.000 to 10,000.000 lbs.
Example: 543.000 lbs
Register 33: 8 (msw)
Register 34: 18712 (lsw)
Load Cell 2 Tension = ((8 * 65536) + 18712) / 1000 = 543.000 lbs