Buffer Memory - PLCS AD/DA
Address | Details | Default | R/W | |
Hex. | Dec. | |||
0H | 0 | CH.1 Digital conversion value (AD) | - | R |
1H | 1 | CH.2 Digital conversion value (AD) | - | R |
2H | 2 | CH.1 Precise value (AD) | - | R |
3H | 3 | CH.2 Precise value (AD) | - | R |
4H | 4 | CH.1 Percentile value (AD) | - | R |
5H | 5 | CH.2 Percentile value (AD) | - | R |
6H | 6 | High alarm status (AD) | - | R |
7H | 7 | Low alarm status (AD) | - | R |
8H | 8 | CH.1 Setup input signal range (AD) | 0 | R/W |
9H | 9 | CH.2 Setup input signal range (AD) | 0 | R/W |
AH | 10 | Setup Raw Value digital output (AD) | 0 | R/W |
BH | 11 | CH.1 Average processing setting value (AD) | 2000h | R/W |
CH | 12 | CH.2 Average processing setting value (AD) | 2000h | R/W |
DH | 13 | CH.1 Maximum alarm setting value (AD) | 0 | R/W |
EH | 14 | CH.2 Maximum alarm setting value (AD) | 0 | R/W |
FH | 15 | CH.1 Minimum alarm setting value (AD) | 0 | R/W |
10H | 16 | CH.2 Minimum alarm setting value (AD) | 0 | R/W |
11H | 17 | CH.1 Digital Filter Constant (AD) | 30 | R/W |
12H | 18 | CH.2 Digital Filter Constant (AD) | 30 | R/W |
13H | 19 | DA Enable/Disable setup (DA conversion) | 0 | R/W |
14H | 20 | CH.1 DA output type (Current 2types, Voltage 4types) | 0 | R/W |
15H | 21 | CH.2 DA output type (Current 2types, Voltage 4types) | 0 | R/W |
16H | 22 | CH.1 DA Range of digital value | 0 | R/W |
17H | 23 | CH.2 DA Range of digital value | 0 | R/W |
18H | 24 | CH.1 DA Channel Hold/Clear | 0 | R/W |
19H | 25 | CH.2 DA Channel Hold/Clear | 0 | R/W |
1AH | 26 | CH.1 digital output value (DA) | 0 | R/W |
1BH | 27 | CH.2 digital output value (DA) | 0 | R/W |
1CH | 28 | AD / DA Resolution setting | 0 | R/W |
1DH | 29 | Error Code | - | R |
1EH | 30 | OS Version | - | R |
Buffer memory, which is a memory in AD module, stores digital signals converted by AD module and also records set values in currently operating module. AD conversion values which is stored in buffer memory 0 ~ 1 are stored into CPU memory to be used for program using FROM command.
R/W indicates whether or not reading / writing is available from PLC.