From 2ab8793238277a0fc2be141fd9642361c1674491 Mon Sep 17 00:00:00 2001
From: Gabriele Favalessa <favalex@gmail.com>
Date: Sat, 14 Dec 2024 14:43:20 +0100
Subject: [PATCH] Allow slave id to be zero

---
 modbus_cli/modbus_tcp.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/modbus_cli/modbus_tcp.py b/modbus_cli/modbus_tcp.py
index 4d9724f..0709435 100644
--- a/modbus_cli/modbus_tcp.py
+++ b/modbus_cli/modbus_tcp.py
@@ -9,7 +9,7 @@ class ModbusTcp:
     def __init__(self, host, port, slave_id, timeout):
         self.host = host
         self.port = port
-        if not slave_id:
+        if slave_id is None:
             slave_id = 255
         self.slave_id = slave_id
         self.timeout = timeout