ADS services
 | User data of an ADS telegram The maximum size of the user data in an ADS telegram is 1900 bytes. |
Process data port 300
The fieldbus data is accessed via ADS port number 300. The data is monitored by a watchdog. If no further telegram arrives within 1000 ms the outputs will be switched to the safe state.
|
Index group |
Meaning |
Index offset (value range) |
|---|---|---|
|
0xF020 |
Inputs |
0...511 |
|
0xF030 |
Outputs |
0...511 |
Local process image port 800 (BC9000, C900 only)
Data can be read from and written to the local process image. If it is necessary for outputs to be written, it is important to ensure that they are not used by the local PLC, because the local controller will overwrite these values. The data are not associated with a watchdog, and therefore must not be used for outputs that would have to be switched off in the event of a fault.
|
Index group |
Meaning |
Index offset (value range) |
|---|---|---|
|
0xF020 |
Inputs |
0...511 |
|
0xF030 |
Outputs |
0...511 |
|
0x4020 |
Flags (BC 9000, C900 only) |
0...4096 |
ADS services
AdsServerAdsStateB7
Data type (read only) | Meaning |
|---|---|
String | Start - the local PLC is running |
AdsServerDeviceStateB7
Data type (read only) | Meaning |
|---|---|
INT | 0 - Start - the local PLC is running |
AdsServerTypeB7
Data type (read only) | Meaning |
|---|---|
String | Coupler_PLC |
ADSWriteControlBA
Data type (write only) | Meaning |
|---|---|
NetID | Net ID of the BC9000,C900 |
Port | 800 |
ADSSTATE | 5 - RUN / 6 - STOP |
DEVSTATE | 0 |
LEN | 0 |
SRCADDR | 0 |
WRITE | rising edge starts the block |
TMOUT | example: t#1000 ms |
| Acyclic data communication With acyclic data communication it is important to note that about 20 to 30 ms are required in order to establish a TCP/IP connection. Following the successful establishment of a connection the ADS data are sent or read. An ADS read of 1000 bytes takes about 50 ms. If no data are transmitted for 10 seconds, the TCP/IP connection is disconnected from the BC/BK9000, B/C900. |
Register port 100
The ADS port number in the BK/BC9000, B/C900 for register communication is fixed, being set at 100.
|
Index group |
Index offset (value range) |
Meaning | |
|---|---|---|---|
|
Hi-Word |
Lo-Word | ||
|
0 |
0...127 |
0...255 |
Registers in the Bus Coupler |
|
1...64 |
0...3 |
1...64 |
Register of the Bus Terminals |
| Timeout of the ADS function block When reading the register, the time out of the ADS block has to be set to a time longer than 1 second. |
| Setting the password When writing to the registers, the password has to be set (see the documentation for the particular Bus Terminal). |
Access control and IP - AMS-Net ID assignmentB6
The AMS Net-Id table permits access control to the BC 9000, C900 via AMS. As soon as this table has entries, only those AMS devices that have been entered will be able to access the BC 9000.
Furthermore, an assignment of the AMS-Net ID to the IP address of the node is explicitly done here.
The AMS Net-Id table can be filled with ADS write commands:
a maximum of 10 entries is possible.
The structure
|
AMS Net ID |
Size |
|---|---|
|
AMS Net ID |
6 byte |
|
IP address |
4 byte |
|
Reserve |
2 byte |
|
Reserve |
4 byte |
|
Reserve |
4 byte |
Access takes place via port number: 10,000
Index group: 700
|
Index Offset (Write) |
Comment |
Data |
|---|---|---|
|
0 |
Add an entry |
Data structure, 20 bytes |
|
1 |
Delete an entry |
- |
|
2 |
Delete all entries |
- |
|
10 |
Save the table in Flash memory |
- |
|
Index Offset (Read) |
Comment |
Data |
|---|---|---|
|
0 |
Number of entries |
2 byte |
|
1..10 |
Entry n (1...10) |
Data structure, 20 bytes |
| First entry The first entry must be the device that his writing into the table, because the settings have immediate effect. Make sure that all the settings are correct. The table can also be deleted if the end terminal only is inserted, and the DIP switches 1 to 7 are set to ON. |
* as from firmware B6
** as from firmware B7
)² as from firmware BA
See the example.