GLDM 64.1 Technical Manual rev. 1.30 February
2020
Page 9 of 50
Terminal
Connection
Function
15
IN 0
Logic Input 0
16
IN 1
Logic Input 1
17
IN 2
Logic Input 2
18
IN 3
Logic Input 3
19
C
Common of
Input’s 0/1/2/3: 0V
20
OUT 0
Logic Output 0
21
OUT 1
Logic Output 1
22
OUT 2
Logic Output 2
23
OUT 3
Logic Output 3
24
C
Common of Output’s 0/1/2/3:
12 ... 24V or 0V
3.7. Seal Switch
Setup or changes of calibration can only be performed with an open
seal switch (7). Changes lead to get a new TAC value of +1.
Running a legal for trade application needs the jumper connected to
the switch pins and a seal. A broken seal shows up changes of
calibration, which are not allowed.
Protected commands see below.
Traceable Access Code (TAC) protected calibration commands
In case the seal switch is closed, the following commands or menus
can’t be proceeded:
-
Calibration Zero
-
Calibration Gain
-
Calibration Absolute Zero
-
Calibration Absolute Gain
-
Calibration Minimum
-
Calibration Maximum
-
Zero Tracking
-
Zero Range
-
Display Step Size
-
Decimal Point
-
Calibration Save
-
Factory Default
-
Non Volatile Tare
-
Non Volatile Zero
-
Initial Zero @ power ON
3.8. Logic Inputs & Outputs
The GLDM
64.1 offers 4 isolated logic inputs and 4 isolated logic outputs, all “floating”.
The input 0 can get the function to act as Trigger Button for a measurement, see chapter 8.12.6.
The 4 outputs act as switches for setpoints with hysteresis, switch behavior etc. Several bases can be used like
gross weight, net weight or average weight value, see chapter 8.9.x.
Note for Logic Inputs
: The pulse duration must be at least 50ms.
Note for Logic Outputs
: The connection C can be used for either ‘high’ level (24V AC/DC) or ‘low’ level (0V).