MSI-4300 Porta-Weigh Plus/7 Key
•
User Guide
Page 37
M E A S U R E M E N T S Y S T E M S I N T E R N A T I O N A L
COMPUTER OPERATION OF THE MSI PORTA-WEIGH PLUS
FUNCTION
ASCII Code
Comments
Power Off
A
Power on must be from the Porta-Weigh Plus
Zero
B
Subject to motion rules
Net/Gross
C
Function toggles, query scale for current mode
Tare
D
Functions only in the Gross mode
Total
E
Add the current weight to the total register or in
auto-total mode, total on/off
View Total
F
Toggles, query scale for current mode
Calibrate
G
Internal switch must be pushed
Shift
H
Display test and diagnostics
ID Number
I
Must be followed by a number 1-9
J
Will print the current display mode
Clear Selected Mode
K
Sets scale to
GROSS
Mode
Test
L
Display test and diagnostics
Setup
M
Allows changing setup parameters
Peak Hold
N
Toggles, query scale for current mode
Tare Memory
O
Must be followed by a number 1-9
Clear
P
Will clear totals if in view total mode
Query Selected Mode
Q
Poll for current scale mode
Numerics
0-9
Used with Tare Memory, setpoints, etc.
The following functions are intended for factory internal use. Will not function unless the
seal port Calibrate and
CLEAR
keys are depressed immediately after power on.
Calibrate Clear
R
WARNING
This completely clears the Calibra-
tion Constants
Manager Calibrate
W
Configuration manager calibrate mode
Manager Upload
X
Upload the scale configuration to host
µ
C
Manager Download
Y
Download a new configuration from the host
µ
C to the Porta-Weigh Plus
The Porta-Weigh Plus does not have an EIA-232 input buffer. This
limits how fast commands can be sent. Some delay (~10ms) between
ASCII commands should be included in any software written to
control the Porta-Weigh Plus. The speed of data transmission is
limited only by the baud rate and the user interface. The response to a
print command is virtually instantaneous. However, transmission of
new, updated, data from the Porta-Weigh Plus is limited by the speed
of the A/D conversion, and the filter setting. The low filter limits the
data update to a 2 per second rate, the medium is about 1 per second,
and the high setting has about a 1 per 2 second update rate. These