138
Data block (MODBUS frame)
Unit ID (1 byte)
Unit ID (1 byte)
Unit ID (1 byte)
4. Upon reception of correct data frame the sender has to be informed by a receipt in a
form of an UDP frame bearing only the header of received frame.
•
Proxy - In this configuration, units communicate with each other through an external
server. The server IP is written in Proxy server IP configuration variable. This mode
allows using modules with SIM cards without assigned static address. Modules receive a
randomly selected IP address during network login procedure. The Module establishes
communication (sends and receives packets) only with Proxy server. Since modules in
this mode are identified by serial numbers tables and lists describing, other modules in
the network hold serial numbers instead of IP addresses. Dynamically addressed modules
do not have the possibility of remote configuration or remote programming.
13.7. Module's Status format
Status frame of MT-101 module is a sequence of four 16 bit registers from internal
registers space (read command 03H, write 06H or 10H).
0x03E4 Inputs
space
MT_IN
I8..I1 IQ8..IQ1
0x03E5 Outputs
space
MT_OUT
0..0
Q8..Q1
0x03E6 AN1 input (copy input Register 0x0004)
MT_AN1
16 bit value
0x03E7 AN2 input (copy of input Register 0x0005)
MT_AN2
16 bit value
A call upon this coherent area in memory gives optimal access to all physical inputs/outputs
of MT-101.
The same area is used for status sending.
SMS length and status may not exceed 160 characters. If longer, the text is truncated and
complete status is sent.
<message text>
<module status>
<time stamp>
where status is:
I1...I8=01101011
Q1...Q8=01101011
AN1=143
AN2=1780
Binary values are represented bitwise.
Analogue values are represented in engineering units
13.8. Trigger inputs
During operation, the internal system of
MT-101
module creates a number of variables
related to its inputs/outputs and to module diagnostics. Triggering inputs and triggering
flags in conjunction with rules processing enable instantaneous reaction in occurring states.
Содержание MT-101
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