Configuration
3.13 Communications Group
Introduction
The Communications group lets you configure the controller to be connected to a host computer via Modbus® or Ethernet TCP/IP protocol. Two parameters in this Group, Communications Station Address and TX Delay, are also used for IR communications. No other parameters affect IR communications.
Introduction
A controller with a communications option looks for messages from the host computer. If these messages are not received within the configured shed time, the controller will SHED from the communications link and return to
Up to 99 addresses can be configured over this link. The number of units that can be configured depends on the link length, with 31 being the maximum for short link lengths and 15 drops being the maximum at the maximum link length.
Function Prompts
Table
Function Prompt | Selection or Range of |
| Parameter | ||||
Lower Display | Setting |
| Definition | ||||
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| Upper Display |
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| |||
English | Numeric | English |
| Numeric |
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| Code |
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| Code |
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ComADR | 1001 | 1 to 99 |
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| COMMUNICATIONS STATION | |
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| is a number that is assigned to a controller that is |
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| to be used with the communications option. This |
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| number will be its address. This parameter is also |
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| used for the IR communications link. |
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COMSTA | 1002 |
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| COMMUNICATIONS SELECTION |
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| DIS | 0 |
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| MODB | 1 |
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| ETHR | 2 |
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IRENAB | 1003 | DIS | 0 |
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| INFRARED COMMUNICATIONS – Enables/ | |
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| ENAB | 1 |
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| Disables the IR Port. | |
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BAUD | 1004 |
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| BAUD RATE is the transmission speed in bits per |
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| second. This value is used for both |
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| Communications, but for IR Communications, |
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| values below 19200 baud are interpreted as being |
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| 19200 baud. |
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| 4800 |
| 0 |
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| 4800 BAUD |
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| 9600 |
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| 1 |
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| 9600 BAUD | |
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| 19200 |
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| 2 |
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| 19200 BAUD | |
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| 38400 |
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| 3 |
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| 38400 BAUD | |
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4/07 | UDC2500 Universal Digital Controller Product Manual | 73 |
