8. Appendix B: Default Configuration
8.2. Content of the Gateway’s DPRAM Memory
The LUFP9 gateway’s DPRAM memory contains all of the data exchanged between the gateway and the 8 TeSys U motor starters, as well as two special registers only exchanged between the gateway and the DeviceNet master (words used for managing the downstream Modbus network).
The flow of data exchanged between the TeSys U motor starters, the gateway and the DeviceNet master is shown below, in order to highlight the role of the gateway’s memory in these exchanges:
TeSys U motor starters
c d e
j
8.2.1. Input Data Memory Area
Outputs
Modbus
Inputs
LUFP9 Gateway
INPUT data
memory zone
OUTPUT data memory zone
DeviceNet (SLC500) Master
Outputs
DeviceNet
Inputs
The gateway has 512 input bytes. Only the first 32 bytes are used. All of these 32 bytes make up the gateway’s input area, referenced as “Input 1” in the RsNetWorx configurator.
Service | Address | Size | Description | |
|
|
|
| |
Managing the downstream | 16#0000 | 1 word | Gateway status word | |
Modbus network | ||||
| 16#0002 | 1 word | Value of the motor starter c status register | |
| 16#0004 | 1 word | Value of the motor starter d status register | |
Periodic communications | 16#0006 | 1 word | Value of the motor starter e status register | |
16#0008 | 1 word | Value of the motor starter f status register | ||
— | ||||
Monitoring of | 16#000A | 1 word | Value of the motor starter g status register | |
TeSys U motor starters |
|
|
| |
16#000C | 1 word | Value of the motor starter h status register | ||
| ||||
| 16#000E | 1 word | Value of the motor starter i status register | |
| 16#0010 | 1 word | Value of the motor starter j status register | |
16#0012 | 1 byte | Memory location free | ||
Aperiodic communications | 16#0013 | 1 byte | Slave no. (16#01 to 16#08) | |
— | 16#0014 | 1 byte | Function number (16#03) | |
Reading the value of a |
|
|
| |
16#0015 | 1 byte | Number of bytes read (16#02) | ||
motor starter parameter | ||||
(RESPONSE) | 16#0016 | 1 word | Value of the parameter read (16#xxxx) | |
Aperiodic communications | 16#0018 | 1 byte | Slave no. (16#01 to 16#08) | |
— | 16#0019 | 1 byte | Function number (16#06) | |
Writing the value of a |
|
|
| |
16#001A | 1 word | Address of the parameter written (16#xxxx) | ||
motor starter parameter | ||||
(RESPONSE) | 16#001C | 1 word | Value of the parameter written (16#xxxx) | |
Aperiodic communications | 16#001E | 1 byte | Read parameter response counter | |
(“Trigger bytes” for the responses) | 16#001F | 1 byte | Write parameter response counter | |
16#0020 | 1 byte | Free input area | ||
… | … | (480 bytes) | ||
| 16#01FF | 1 byte | ||
|
|
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