The Control Block used to send the sample data is stored in Holding Registers 40100 through 40108. Values stored in the Control block are:
|
|
Register |
Example |
|
Write Command |
40100 |
1 |
|
Status Word |
40101 |
xxxxx |
|
Number of registers to send |
40102 |
6 |
|
Destination HR in Slave device |
40103 |
40001 |
|
Quantum backplane slot address of the network adapter module (high byte) |
40104 |
768 |
|
First byte of IP address |
40105 |
192 |
|
Second byte of IP address |
40106 |
168 |
|
Third byte of IP address |
40107 |
0 |
|
Fourth byte of IP address |
40108 |
57 |
These Holding Registers indicate that six registers worth of data will be sent to the device at IP address 192.168.0.57 and stored starting at address 40001. The Quantum backplane slot address of the network adapter module is 3. To put it in the high order byte, multiply the slot address by 256 (3*256 = 768).
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Sample MSTR Block - No Timestamping. |
