Data exchange procedure
J
In order to use input/output data and control commands simultaneously:
Only after the “Control commands” data exchange has been completed, will the I/O data be refreshed.
All specified commands and parameters must be transferred in hexadecimal format.
J
The following tables show the different control commands possible. These essential control commands fall into three essential categories –
Please also note the relevant description of the
Telegram structure
Byte | Meaning | Value (hex), sent by | ||
|
| Master |
| Slave |
|
|
|
|
|
0 |
| Toggle byte |
| J page 44 |
|
| |
1 |
| Command |
|
|
|
| |
|
|
| Read |
| 93 |
| – |
|
|
| Write |
| B3 |
| – |
|
|
|
|
|
|
| |
|
| Response |
|
|
| ||
|
|
| Read successful |
|
|
| |
|
|
| – |
| C2 | ||
|
|
|
|
|
|
|
|
|
|
| Write successful |
| – |
| C1 |
|
|
| Command rejected |
| – |
| C0 |
|
|
|
|
|
|
| |
2 |
| Len | 05 |
| 05 | ||
|
|
|
|
|
|
| |
3 |
| Index |
| 0 – 21 |
| 0 – 21 | |
4 – 8 |
| Data 1 – 4 | depending on index, | ||||
|
|
|
|
| J Table 6 |
|
|
|
|
|
|
|
|
|
|
1)0 = Time/date, J Table 6
1 = Summer time, J Table 7
2 = Winter time, J Table 8
MN05013001E | For more information visit: www.EatonElectrical.com | 45 |
