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RTU unit_id documentation

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Valerio De Benedetto 2023-06-29 11:14:11 +02:00
parent 2da601fd80
commit 9533e1e035
1 changed files with 3 additions and 1 deletions
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4
nanomodbus.h
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@ -140,8 +140,10 @@ typedef struct nmbs_platform_conf {
/** /**
* Modbus server request callbacks. Passed to nmbs_server_create(). * Modbus server request callbacks. Passed to nmbs_server_create().
* *
* These methods accept a pointer to arbitrary user-data, which is the arg member of the nmbs_platform_conf that was passed * These methods accept a pointer to arbitrary user data, which is the arg member of the nmbs_platform_conf that was passed
* to nmbs_server_create together with this struct. * to nmbs_server_create together with this struct.
*
* `unit_id` is the RTU unit ID of the request sender. It is always 0 on TCP.
*/ */
typedef struct nmbs_callbacks { typedef struct nmbs_callbacks {
#ifndef NMBS_SERVER_DISABLED #ifndef NMBS_SERVER_DISABLED