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Supported device types and versions
Communication line configuration
Communication station configuration
I/O tag configuration
Specific data of Multical III device
Parameters settings and data acquisition methods
Literature
Changes and modifications
Document revisions
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- Communication line category: Serial, SerialOverUDP Device Redundant, MOXA IP Serial Library, RFC2217 Client, TCP/IP-TCP.
Note: when using a using TCP/IP-TCP line or RFC2217 Client lines, in case of redundant systems multiple names/addresses separated by commas can be entered. - Standard settings for most of M-Bus devices:
- Mode 1: Baud rate 300, 8 bit, 1 stop bit, even parity, RTS=1, DTR=1.
- Mode 2: Baud rate 2400, 8 bit, 1 stop bit, even parity, RTS=1, DTR=1.
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Keyword | Full name | Meaning | Unit | Default value |
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| Address Scan Mode | Each reading of values increments the station address. This mode can be used to find a device with an unknown address. | - | No |
| Retry Count | Poll repetition count in case of a communication error. | - | 2 |
| Retry Timeout | Delay between poll repetition in case of a communication error. | ms | 100 ms |
| Wait First Timeout | First waiting for response after sending the poll. | ms | 800 ms |
| Wait Timeout | Delay after transmitting the poll before reading the response. | ms | 500 ms |
| Max Wait Retry | Repetition count of response readings till its finalization. | - | 40 |
| Wait After SND_NKE Broadcast | Delay after sending a broadcast SND_NKE, before reading from the first station on a communication line. | ms | 8000 ms |
| Wait before REQ_UD2 Request | Delay before sending the REQ_UD2 poll request to a slave. | ms | 4000 ms |
| Set FCB Bit after SND_NKE | Parameter specifies whether an FCB bit in a poll request after sending SND_NKE shoult be ste to 1 (YES) or 0 (NO). | - | YES |
| Accept Following Records (0=disable,255=read all) | If the slave station has Variable Data available, the parameter specifies the number of records read during one polling of the station. A value of 255 means that all available records will be read. | - | 0 |
| Send Application Reset before REQ_UD2 | Optional sending of "application reset" message (50h) prior to reading the values from the station. | - | NO |
| WakeUp Length | Length (given in characters) of so-called wake-up message sent before each poll. Value 0 disables sending of wake-up message. | bytes | 0 |
| WakeUp Delay | Delay between wake-up message and poll. | ms | 400 |
| Full Debug | Enables debug logs on the communication and acquired data. | - | NO |
| Multical III | Enables decoding the Manufacture specific data of Multical III device. | - | NO |
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Then a REQ_UD2 poll request is sent to every slave, after waiting according to value specified by the parameter WBR) to which they all should respond by the data datagram RSP_UD.
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