User Manual

Landis+Gyr
34 98-2550 Rev AE Gridstream SCADA/DA S4SBR
3.11 Memory Location
Memory locations in the S4SBR [listed above in Table 3-3 and below as 77XX-77XXx] store
commands to control (as outputs) and monitor the status (as inputs) of connected devices.
[7702-7703h] Analog to Digital Channel A1.
When A1 is set to “Analog to Digital” (Bit 2) this location will contain a 10-bit reading. The
scale on this board is from 0 to 2.5 volts. Voltages greater than 2.5 VDC will be reported as 2.5
VDC.
[7704-7705h] Analog to Digital Channel A2.
When A2 is set to “Analog to Digital” (Bit 6) this location will contain a 10-bit reading. The
scale on this board is from 0 to 2.5 volts. Voltages greater than 2.5 VDC will be reported as 2.5
VDC.
[7706-7709h] D1 Interrupt Counter.
If D1 is configured as an interrupt (Bit 2-3) then this location will count the number of
interrupts that have been detected.
NOTE: The interrupt counter is cleared each time interrupts are enabled.