Advanced Operations
6.3.4.2 Modbus
SYSTEM SETUP
NETWORK MODULES
FIELDBUS
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| Sets up an Modbus slave which is based on individual composition of data from different |
| TELEGRAM | devices. | |
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| For details refer to section 5.12 on page 62. |
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| MODBUS |
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| MODBUS ADRESS | Default value: 0 |
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| Sets the address (1 to 247) of the Modbus slave which was configured in the TELEGRAM menu. | |
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| Default value: DISABLED |
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| Virtual slaves can be added. These slaves are a copy of the real devices which are configured in |
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| the TELEGRAM menu. The Modbus addresses of these slaves follow right next to the address of |
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| VIRTUAL SLAVES | the configured slave. The first configured device has the Modbus address right next to the |
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| configured slave, the second device has the next but one address etc. (Table 18). |
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| ENABLED: Slave copy is activated. |
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| DISABLED: Slave copy is not activated. |
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| Default value: 19200 |
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| BAUDRATE | Sets the communication speed (9600, 19200, 38400 and 57600 baud) of the serial |
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| transmitter/receiver. |
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| STOP BITS | Default value: 1 |
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| Sets the number of used stop bits (1 or 2). | |
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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. |
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| Note: A wrong setting in this menu can lead to slight deviation of floating point values shifted by |
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| one register. |
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| DEFAULT SETUP | Restores the default values of the Modbus card. |
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| Simulates two floating point values and error/status to substitute a real instrument. |
| SIMULATION | The first floating point runs through a ramp between the limits set in the menus MAXIMUM and | |
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| MINIMUM. Figure 66 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 | Determines 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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| Upper limit for the first floating point value. | |
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| MINIMUM | Default value: 50 |
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| 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 register (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 register (Table 16). | |
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| TOGGLE | Changes the direction of the simulated ramp use. |
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