From 30c549c7e4d63ab3ea5bd0a7cfd69fa89339df33 Mon Sep 17 00:00:00 2001
From: zhangqian <zhangqian@123.com>
Date: 星期一, 18 九月 2023 19:46:27 +0800
Subject: [PATCH] 增加重试，地址-1
---
pkg/plc/modbusx/modbus.go | 6 ++++++
1 files changed, 6 insertions(+), 0 deletions(-)
diff --git a/pkg/plc/modbusx/modbus.go b/pkg/plc/modbusx/modbus.go
index edcea6f..e1af28c 100644
--- a/pkg/plc/modbusx/modbus.go
+++ b/pkg/plc/modbusx/modbus.go
@@ -6,9 +6,15 @@
)
func Read(ipAddr string, address uint16, quantity uint16) (data []byte, err error) {
+ address--
cli := getModbusConnection(ipAddr)
data, err = cli.ReadHoldingRegisters(address, quantity)
dealErr(err, ipAddr)
+ if err != nil {
+ cli = getModbusConnection(ipAddr)
+ data, err = cli.ReadHoldingRegisters(address, quantity)
+ dealErr(err, ipAddr)
+ }
return
}
--
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