ESPA4.4.4
The ESPA driver can broadcast and receive messages. Usually messages are initiated by binary data points or represented by binary data points.
The ESPA driver is named: espa
The routing address of the first ESPA driver is 810
The data point file for the first ESPA driver is called: espa1.txt
The configuration file for global settings of the first ESPA driver is named: espa1.cfg
For the ESPA driver as well as all other gateway drivers the data point definitions are as follows:
| Type | Description |
|---|---|
| M | Integer value (binary data points, counters) which can/shall only be read by the gateway |
| S | Integer value which can be either read or written by the gateway. (to M-BUS writing is not possible) |
| X | Floating point value (with decimal place) which can/shall only be read by the gateway |
| Y | Floating point value (with decimal place) which can be either read or written by the gateway. (to M-BUS writing is not possible) |
| A | String, is used e.g. with BACnet Trends and ESPA4.4.4 data points |
Mainly type A is used.
Addresses are defined as follows:
„<PagingStationAddress>.<PagerAddress>.[<Message No.>]“
communication state: „failure“
The number „5565“ on paging station „2“ will be defined as follows: File espaX.txt :
[A 2.5565]
Below please find typical data point definitions:
[M failure] name = communication state ESPA driver query = pe
[A 2.5565] name = station 2 number 5565 query = pe
Messages to the numbers are provided to the driver via the dispatch.txt file. Typical dispatch-entries for ESPA messages are:
[Address of the source data point] target = 810 espa 2.5565 threshold = 1 value = Message light ringer AL 1st floor
If ESPA messages shall be received and mapped to binary data points then the point must be defined as follows:
[S 1.123.1] query = pe name = Alarm IN 3701 Alarm Fire Control Center format = Alarm 300/0 3701
[S 1.123.2] query = pe name = Alarm OUT 3701 Alarm Fire Control Center format = End Alarm 300/0 3701
The format must match the transmitted message text.
Messages received can be transferred to binary data points in the dispatch.txt file.
[810 espa 1.123.1] target = address of target point threshold = 1 value = 0
[810 espa 1.123.2] target = address of target point threshold = 1 value = 1