GW-7557 PROFIBUS/HART Gateway User Manual
(Version 1.00, Dec/2011)
PAGE: 28
4.4 The Configuration of the modules
The user can set the number and size of the modules in the PROFIBUS
configuration tool. The settings of the modules are described below.
●
Max. modules
：
110 modules
●
System setting module
：
13 bytes in, 6 bytes out
●
Output module
：
Output Words => 4~48 Words
●
Input module
：
Input Words => 8~48 Words
●
HART command module
：
Support universal and common command
●
Max. length of I/O data
：
480 Bytes
●
Length of output data
：
0~240 Bytes
●
Length of input data
：
0~240 Bytes
Note:
The user must add “System setting module” at the first module before the other
modules, else the GW-7557 will send the diagnostic messages to PROFIBUS
Master and the system will be abnormal.
The modules have module parameters about the communication settings. The
module parameters are shown in the below
：
A. HART command module parameters
：
●
Channel Number
：
Channel 0 ~ Channel 3
●
Device Number
：
Device 0 ~ Device15
●
Output Mode
：
Initial/Polling/Manual/Burst
Example 1:
If the user wants to read primary variable(command 1). HART slave device
connects with HART channel 2 of GW-7557, preamble length is 5
、
long address
is 0xFB 0x01 0x00 0x12 0x67, network type of HART channel 2 is point to point.
In this case, the user should select the following modules:
1.
Transparent mode
：
The user can select a “4 Words Output module” and a “8 Words Input module”.
2.
Compact mode
：
The user can select a “Command 1 module” , module parameters are shown in
