User Manual

Table Of Contents
Landis+Gyr Chapter 3 - Development Environment
Gridstream SCADA/DA S4SBR 98-1138 Rev AD 33
Memory Location
INTRODUCTION INFORMATION
[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.
5 Pin A2 State
When A2, bit 4 is "0" and bit 6 is "0", then bit 5 returns current state as
"0" or "1".
When A2, bit 4 is "0" and bit 6 is "1", then read location 7704-7705
which returns the Hex value of the sampled voltage between 0-2.5
VDC.
When A2, bit 4 is "1", then the value of bit 5 can be set.
0
6Pin A2 Control
0: General Purpose I/O
1: Analog to Digital Channel (Bit 0 = "0" only)
0
7 Reserved Not Used 0
Table 3 - 3. Control Register 2
Bit Feature Description Dflt.
draft 29 Jan 2013