Nordson Ultimus V, Operating Manual, Page: 53 / 86

2.6.2.7 Vacuum Set Command
This command updates the vacuum value in the current memory location.
Client command and data: VS--vvvv
vvvv:
The 4-digit vacuum, setting excluding the decimal point. This is a unitless value. The valid vacuum ranges and
decimal point are determined by the vacuum units currently selected in the dispenser.
Values to use in the command:
Vacuum Unit Vacuum Setting Required Value to Send in the Command (vvvv)
H
2
O 0.0–18.0 H
2
O 0000–0180
kPa 0.00–4.48 kPa 0000–0448
Hg 0.00–1.32 Hg 0000–0132
mmHg or Torr 0.0–33.6 mmHg 0000–0336
EXAMPLE:
If the units of vacuum are set to H
2
O and if the required vacuum setpoint is 10.5 H
2
O, the text packet is:
(STX) + 08 + VS-- + 0105 + E9 + (ETX)
The above text packet in hexadecimal format:
STX 0 8 V S space space 0 1 0 5 E 9 ETX
0x02 0x30 0x38 0x56 0x53 0x20 0x20 0x30 0x31 0x30 0x35 0x45 0x39 0x03
2.6.2.8 Memory‑Vacuum Set Command
This command updates the vacuum value in the memory location specified in the command. This command also
updates the LCD screen to the specified memory location.
Client command and data: VH--CHcccVvvvv
ccc:
The 3-digit memory location from 0–399. The dispenser will automatically limit value to prevent any errors.
vvv: The 4-digit vacuum setting, excluding the decimal point. This is a unitless value. The valid vacuum ranges and
decimal point are determined by the vacuum units currently selected in the dispenser.
Values to use in the command:
Vacuum Unit Vacuum Setting Required Value to Send in the Command (vvvv)
H
2
O 0.0–18.0 H
2
O 0000–0180
kPa 0.00–4.48 kPa 0000–0448
Hg 0.00–1.32 Hg 0000–0132
mmHg or Torr 0.0–33.6 mmHg 0000–0336
EXAMPLE:
If the units of vacuum are set to H
2
O, the required memory location is 2, and the required vacuum
setpoint is 10.0 H
2
O, the command is: (STX) + 0E + VH-- + CH00 79 + (ETX)
Length of this text packet: Decimal 14 or hexadecimal 0x0E
The above text packet in hexadecimal format:
STX 0 E V H space space C H 0 0 2
0x02 0x30 0x45 0x56 0x48 0x20 0x20 0x43 0x48 0x30 0x30 0x32
V 0 1 0 0 7 9 ETX
0x56 0x30 0x31 0x30 0x30 0x37 0x39 0x03
Appendix B — RS‑232 Protocol (continued)
Ultimus V High Precision Fluid Dispenser
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