Update ModbusMaster.php

10 years ago · 697daedba3
parent cd52263b8e
commit 697daedba3
1 changed files with 1 additions and 0 deletions
--- a/Phpmodbus/ModbusMaster.php
+++ b/Phpmodbus/ModbusMaster.php
@ -32,6 +32,7 @@ require_once dirname(__FILE__) . '/PhpType.php';
 *   - FC  6: write single register
 *   - FC 15: write multiple coils
 *   - FC 16: write multiple registers
+ *   - FC 22: mask write register
 *   - FC 23: read write registers
 *   
 * @author Jan Krakora