Differences

This shows you the differences between two versions of the page.

--- uphp:library_functions:modbus [2021/04/09 09:07]
admin
+++ uphp:library_functions:modbus [2021/09/13 05:57]
@@ Line 1: / Line 1: @@
-======Modbus Library Reference======
-Available in <badge>Wattmon OS 3.12+</badge>
-The Modbus include library contains functions and defines as shown below.
-**Usage:**
-<html><pre>include("/lib/uphp/modbus.inc");</pre>[[modbus.inc|View Source]]</html>
-===== Defines =====
-^DEFINE^VALUE^
-|MB_ILLEGAL_FUNCTION|-1|
-|MB_ILLEGAL_ADDRESS|-2|
-|MB_ILLEGAL_VALUE|-3|
-|MB_SLAVE_FAILURE|-4|
-===== Functions =====
-Click on the function name for further details:
-^FUNCTION NAME^PARAMETER(S)^RETURN^LIBRARY^DESCRIPTION^
-|[[mb_get_error_string]]|<html><span style="color:green">int<span style="color:blue"> error</html>|<html><span style="color:green">string<span style="color:blue"></html>|[[modbus]]|Get human readable error description|
-|[[mb_set_float_be_0x10]]|<html><span style="color:green">int<span style="color:blue"> id, <span style="color:green">int<span style="color:blue"> bus, <span style="color:green">int<span style="color:blue"> reg, <span style="color:green">int<span style="color:black"> val, <span style="color:green">int<span style="color:blue"> retries</html>|<html><span style="color:green">int<span style="color:blue"></html>|[[modbus]]|Set a modbus float in big endian using function 10h|
-|[[mb_set_float_le_0x10]]|<html><span style="color:green">int<span style="color:blue"> id, <span style="color:green">int<span style="color:blue"> bus, <span style="color:green">int<span style="color:blue"> reg, <span style="color:green">int<span style="color:black"> val, <span style="color:green">int<span style="color:blue"> retries</html>|<html><span style="color:green">int<span style="color:blue"></html>|[[modbus]]|Set a modbus float in little endian using function 10h|
-|[[mb_set_int16_0x03]]|<html><span style="color:green">int<span style="color:blue"> id, <span style="color:green">int<span style="color:blue"> bus, <span style="color:green">int<span style="color:blue"> reg, <span style="color:green">int<span style="color:black"> val, <span style="color:green">int<span style="color:blue"> retries</html>|<html><span style="color:green">int<span style="color:blue"></html>|[[modbus]]|Set a modbus device register using function 03h|
-|[[mb_set_int16_0x10]]|<html><span style="color:green">int<span style="color:blue"> id, <span style="color:green">int<span style="color:blue"> bus, <span style="color:green">int<span style="color:blue"> reg, <span style="color:green">int<span style="color:black"> val, <span style="color:green">int<span style="color:blue"> retries</html>|<html><span style="color:green">int<span style="color:blue"></html>|[[modbus]]|Set a modbus device register using function 10h|
-|[[mb_set_uint32_be_0x10]]|<html><span style="color:green">int<span style="color:blue"> id, <span style="color:green">int<span style="color:blue"> bus, <span style="color:green">int<span style="color:blue"> reg, <span style="color:green">int<span style="color:black"> val, <span style="color:green">int<span style="color:blue"> retries</html>|<html><span style="color:green">int<span style="color:blue"></html>|[[modbus]]|Set a modbus UINT32 in big endian using function 10h|
-|[[mb_set_uint32_le_0x10]]|<html><span style="color:green">int<span style="color:blue"> id, <span style="color:green">int<span style="color:blue"> bus, <span style="color:green">int<span style="color:blue"> reg, <span style="color:green">int<span style="color:black"> val, <span style="color:green">int<span style="color:blue"> retries</html>|<html><span style="color:green">int<span style="color:blue"></html>|[[modbus]]|Set a modbus UINT32 in little endian using function 10h|
-===== Example =====
-<code php>
-<pre><?
-// assume a modbus TCP connection on ID 1 on Channel 2
-$DEBUG=1;
-include("/lib/uphp/modbus.inc");
-$id=1;
-$bus=2;
-$reg=1;
-$cmd=100;
-$retries=1;
-$res=mb_set_int16_0x03($id, $bus, $reg, $cmd, $retries);
-print("\r\nSet INT 16 func 03 result is : ".$res." ".mb_get_error_string($res));
-$reg++;
-$res=mb_set_int16_0x10($id, $bus, $reg, $cmd, $retries);
-print("\r\nSet INT 16 func 10 result is : ".$res." ".mb_get_error_string($res));
-$reg+=2;
-$res=mb_set_uint32_le_0x10($id, $bus, $reg, $cmd, $retries);
-print("\r\mb_set_uint32_le_0x10 result is : ".$res." ".mb_get_error_string($res));
-$reg+=2;
-$res=mb_set_uint32_be_0x10($id, $bus, $reg, $cmd, $retries);
-print("\r\mb_set_uint32_be_0x10 result is : ".$res." ".mb_get_error_string($res));
-$reg+=2;
-$res=mb_set_float_le_0x10($id, $bus, $reg, $cmd, $retries);
-print("\r\mb_set_float_le_0x10 result is : ".$res." ".mb_get_error_string($res));
-$reg+=2;
-$res=mb_set_float_be_0x10($id, $bus, $reg, $cmd, $retries);
-print("\r\mb_set_float_be_0x10 result is : ".$res." ".mb_get_error_string($res));
-?></pre>
-</code>

Wattmon Documentation Wiki

User Tools

Site Tools

Differences

Page Tools