From 0748a09da4bd399468723b9c0a813250fcf36cbc Mon Sep 17 00:00:00 2001
From: Stuart Longland <stuartl@vrt.com.au>
Date: Thu, 8 Feb 2024 16:01:29 +1000
Subject: [PATCH] index.js: Tweak undefined error code 9

To be consistent with the similarly undefined error code 0.
---
 index.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/index.js b/index.js
index 86bb688..5b31bb3 100644
--- a/index.js
+++ b/index.js
@@ -44,7 +44,7 @@ const modbusErrorMessages = [
     /*code 6=*/"Slave device busy (retry request again later)",
     /*code 7=*/"Negative acknowledge (slave device cannot perform programming functions)",
     /*code 8=*/"Memory parity error (slave device detected a parity error in memory)",
-    /*code 9=*/undefined,
+    /*code 9=*/"Unknown error",
     /*code10=*/"Gateway path unavailable (misconfigured gateway)",
     /*code11=*/"Gateway target device failed to respond (retry request again later)"
 ];