From 2df84cdc7faf29cc8a2512b627a36a3881276b9f Mon Sep 17 00:00:00 2001
From: zhangqian <zhangqian@123.com>
Date: 星期四, 26 十月 2023 16:29:15 +0800
Subject: [PATCH] plc4x读写加入长度
---
service/plc.go | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/service/plc.go b/service/plc.go
index a0240ab..01b95a5 100644
--- a/service/plc.go
+++ b/service/plc.go
@@ -97,7 +97,9 @@
if len(value) == 2 {
val = binary.BigEndian.Uint16(value)
} else if len(value) == 4 {
- val = binary.BigEndian.Uint32(value)
+ low16Val := uint32(binary.BigEndian.Uint16(value[:2]))
+ high16 := uint32(binary.BigEndian.Uint16(value[2:])) << 16
+ val = low16Val + high16
} else {
logx.Errorf("plc read get an unknown int value: %v, address:%v", value, address)
return nil, errors.New(fmt.Sprintf("unknown int value锛�%v", value))
--
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