Advanced Operations
6.3.4 Network Modules (Profibus, Modbus)
The sc1000 controller can be embedded as a slave into an existing fieldbus system. The Network Modules menu displays all the settings needed, the menu content depends on the communication gateway used, Profibus DP or Modbus.
Note: This menu is displayed only if a network card is installed in the sc1000 controller.
6.3.4.1 Profibus
SYSTEM SETUP
NETWORK MODULES
FIELDBUS
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| Builds an individual composition of data from different devices. These data structure allows to |
| TELEGRAM | transmit up to 24 measured values on one Profibus slave device. | |
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| For details refer to section 5.12 on page 62. |
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| PROFIBUS DP |
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| ADDRESS | Default value: 0 |
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| Sets up the PROFIBUS address (1 to 128) for the slave. | |
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| Default value: NORMAL |
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| Sets the sequence of bytes when transmitting floating point values. |
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| Please note that this setting only affects the data of the configured slave. |
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| DATA ORDER | A floating point value consists of 4 bytes. |
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| SWAPPED: Swaps the first pair of bytes with the last pair. | |
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| NORMAL: The pairs are not swapped. This mode fits to all known Profibus master systems. |
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| Note: A wrong setting in this menu can lead to slight deviations of floating point values shifted by |
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| Simulates two floating point values and error/status to substitute a real instrument. |
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| The tag order is: |
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| 1. Tag: ERROR |
| SIMULATION | 2. Tag: STATUS | |
| 3./4. Tag: First floating point value counting to MAXIMUM value respectively MINIMUM value. | ||
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| 5./6. Tag: Second floating point being the difference between the first floating point value and the |
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| value set in the MAXIMUM. menu |
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| The first floating point runs through a ramp between the limits set in the menus MAXIMUM and |
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| MINIMUM. Figure 65 shows the simulation mode. |
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| Default value: NO |
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| SIMULATION | Turns the simulation on or off. |
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| YES: Starts a simulation | |
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| NO: Stops a simulation. |
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| Default value: 10 minutes |
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| PERIOD | Sets the time the first floating point value needs to run through the whole range between |
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| MINIMUM and MAXIMUM. |
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| MAXIMUM | Default value: 100 |
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| Sets the upper limit for the first floating point value. | |
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| MINIMUM | Default value: 50 |
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| Sets the lower limit for the first floating point value. | |
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| ERROR | Default value: 0 |
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| The value entered in this menu will be set in the first simulated tag (Table 15). | |
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| STATUS | Default value: 0 |
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| The value entered in this menu will be set in the second simulated tag (Table 16). | |
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| TOGGLE | Changes the direction of the simulated ramp. |
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