Discrete I/O Switch - Mettler Toledo IND246 Guia De Instalacion

2.5.2.

Discrete I/O Switch

A switch on the Discrete I/O board selects if the inputs will be active or passive. Refer to the Discrete
I/O Connections section starting on page 2-34 for an explanation of these two modes, and sample
2-38 METTLER TOLEDO IND246 and IND246 POWERCELL Installation Manual
Figure 2-72: Location of Switch Block 1 on the Main PCB, POWERCELL Version
Switch
SW1-1 Metrology Security Switch (legal for trade)
When in the ON position, this switch prohibits
changes to metrological parameters in setup.
This must be ON for "approved" applications
SW1-2 Master Reset
Set in the ON position and power cycle to
perform a master reset of all data in the terminal
Set in the OFF position during normal operation.
SW1-3 Flash Software
Set in the ON position for software download
Set in the OFF position during normal operation
SW1-4 Reset Calibration
Set in the ON position to reset calibration during
a master reset
Set in the OFF position to retain current
calibration values during a master reset
SW1-5 Not used
SW1-6 Not used
When both SW1-2 and SW1-4 are positioned ON and AC power is applied to the terminal, a
Master Reset function will be initiated. This procedure will erase all programming in the terminal
and return all settings back to factory default values. This process is described in the IND246
Technical Manual, Chapter 4, Service and Maintenance.
Table 2-6: Switch 1 Functions
Functions Notes
This is true even if the Scale
Approval parameter is selected
as "None" in setup.
When a Master Reset is
performed, set SW1-4 to ON to
reset metrologically significant
data, such as scale calibration,
GEO code, etc.
Works with switch SW1-2
64084463 | 03 | 12/2017