ZPA INMAT 51/66 communication protocol

Supported device types and versions
Communication line configuration
Communication station configuration
Station protocol parameters
I/O tag configuration
Literature
Changes and modifications
Document revisions

Supported device types and versions

This protocol supports data reading and writing to the INMAT 66 and INMAT 51 dataloggers produced by ZPA Nová Paka (Czech republic).

Communication line configuration

Communication line category: Serial, SerialOverUDP Device Redundant.
The parameters of an asynchronous line are set according to version and type of device connection:
- the settings from the manufacturer (you can find out it on a display in the control menu): 9600 Baud, 8 data bits, even parity, 1 stop bit.

Note:
When testing, we found out that there was a short period between sending the request and receiving the response (less than 10 ms). You should enter similar values (1 to 10 ms) into the parameter "Receive delay" in the line mode. If there are several devices on one line (RS485), you should set such value which is suitable for all devices to ensure 100% success of data transfer.

Communication station configuration

Communication protocol: ZPA INMAT 51/66.
The station address is a decimal number in the range of 0 up to 126 (you can find it on a display of device).
When necessary, you may enable the synchronization of real-time on the station – INMAT devices.

Station protocol parameters

Communication station - configuration dialog box - tab Protocol parameters.
They influence some of the optional parameters. You can set the following station protocol parameters:

Table 1

Parameter	Meaning	Unit	Default value
Wait Timeout	The delay between the response readings.	ms	200 ms
Wait First Timeout	The delay after sending the request and before reading the response.	ms	200 ms
Retry Timeout	Timeout before resending a request if no response has been received.	ms	500 ms
Max Wait Retry	The maximum number of retries of the response reading.	-	4
Retry Count	Maximum count of request retries. If no response returns after a request had been sent, the station's status will change to a communication error.	-	2
Local Source Address	The local source address of the D2000 KOM process.	-	0
Full Debug	Communication monitoring high level, information about reading I/O tags, and received values are displayed.		NO