Nordson Ultimus V, Operating Manual, Page: 63 / 86

2.6.3 Read Commands
For these commands, the client requests a set of data from the dispenser, which the dispenser will return before
ending the transmission. Read commands are sent using the sequence explained in “2.4.2 Read Text Packets” on
page 48.
NOTE:
The two hyphens “--” shown in the commands represent ASCII space values (Hex 0x20).
2.6.3.1 Pressure Time Read Command
This command returns the Dispense Pressure and Dispense Time for the specified address. It also updates the LCD
screen to the specified memory location.
Client command and data: UCccc
ccc:
The 3-digit memory location from 0–399. The dispenser will automatically limit value to prevent any errors.
EXAMPLE: To read the Dispense Pressure and Dispense Time values in memory location #1, the text packet is:
(STX) + 05 + UC001 + 72 + (ETX)
NOTE:
This command changes the current memory location in the dispenser as set in the command (e.g., 001 in
above example command), in addition to returning the values for Dispense Pressure and Dispense Time.
The above text packet in hexadecimal format:
STX 0 5 U C 0 0 1 7 2 ETX
0x02 0x30 0x35 0x55 0x43 0x30 0x30 0x31 0x37 0x32 0x03
NOTE: “D0” is the letter “D” followed by the digit “0.”
Return Format:
D0PDppppDTtttt
pppp:
The 4-digit pressure setting excluding the decimal point. This is a unitless value. The valid pressure ranges
and decimal point are determined by the pressure units currently selected in the dispenser.
ttttt: The 4-digit dispense time value excluding the decimal point. The valid range is 0.000 to 9.999. This command
truncates the last decimal place of the dispense time. This was done to make this command compatible with
the Musashi FX808 protocol.
Interpreting the pressure setting from the return feedback value:
Pressure Unit
Value Received from the
Dispenser (pppp)
Pressure Setting
psi 0000–1000 0.0–100.0 psi
kPa 0000–6895 0.0–689.5 kPa
Bar 0000–6895 0.000–6.895 bar
EXAMPLE: If the pressure setting at the requested memory location is 50.0 psi and the time setting is 1.005 s, the
text packet received from the dispenser is: (STX) + 0E + D0PD0500 60 + (ETX)
Length of the response text packet:
Decimal 14 or hexadecimal 0x0E
The above text packet in hexadecimal format:
STX 0 E D 0 P D 0 5 0 0 D T 1
0x02 0x30 0x45 0x44 0x30 0x50 0x44 0x30 0x35 0x30 0x30 0x44 0x54 0x31
0 0 5 6 0 ETX
0x30 0x30 0x35 0x36 0x30 0x03
Appendix B — RS‑232 Protocol (continued)
Ultimus V High Precision Fluid Dispenser
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