8. Appendix B: Default Configuration
8.2.2. Output Data Memory Area
The gateway has 512 output bytes. Only the first 32 bytes are used. All of these 32 bytes make up the gateway’s output area, referenced as “Output 1” in the RsNetWorx configurator.
Service | Address | Size | Description | |
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Managing the downstream | 16#0200 | 1 word | DeviceNet master command word | |
Modbus network | ||||
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| 16#0202 | 1 word | Value of the motor starter ccommand register | |
| 16#0204 | 1 word | Value of the motor starter dcommand register | |
Periodic communications | 16#0206 | 1 word | Value of the motor starter ecommand register | |
16#0208 | 1 word | Value of the motor starter fcommand register | ||
— | ||||
Controlling | 16#020A | 1 word | Value of the motor starter gcommand register | |
TeSys U motor starters |
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16#020C | 1 word | Value of the motor starter hcommand register | ||
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| 16#020E | 1 word | Value of the motor starter icommand register | |
| 16#0210 | 1 word | Value of the motor starter jcommand register | |
Aperiodic communications | 16#0212 | 1 byte | Slave no. (16#01 to 16#08) | |
16#0213 | 1 byte | Function number (16#03) | ||
— | ||||
Reading the value of a | 16#0214 | 1 word | Address of the parameter to be read (16#xxxx) | |
motor starter parameter (QUERY) |
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16#0216 | 1 word | Number of parameters to be read (16#0001) | ||
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Aperiodic communications | 16#0218 | 1 byte | Slave no. (16#01 to 16#08) | |
16#0219 | 1 byte | Function number (16#06) | ||
— |
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16#021A | 1 word | Address of the parameter to be written | ||
Writing the value of a | ||||
motor starter parameter (QUERY) |
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| (16#xxxx) | |
| 16#021C | 1 word | Value of the parameter to be written (16#xxxx) | |
Aperiodic communications | 16#021E | 1 byte | Read parameter query counter | |
(“Trigger bytes” for the queries) | 16#021F | 1 byte | Write parameter query counter | |
16#0220 | 1 byte | Free output area | ||
… | … | (480 bytes) | ||
| 16#03FF | 1 byte | ||
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8.2.3. Total Number of Modbus Queries and Responses
The total number of Modbus queries and responses is equal to 36 (2 periodic queries and 2 periodic responses for each of the 8 TeSys U motor starters, plus 2 aperiodic queries and 2 aperiodic responses for all of these motor starters). Since the total number of the Modbus queries and responses one can configure for a single gateway is limited to 50, there is only 14 spare Modbus queries and responses (that is to say the equivalent of 7 Modbus commands).
So this reserve does not allow the addition of any single Modbus command for each of the TeSys U motor starters, as this would require the use of 16 Modbus queries and responses (1 query and 1 response for each of the 8 motor starters).
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