Wed, 27 Nov 2019 14:53:22 +0100Variables start_addr and count were read from query_packet using function mb_ntoh_safe. It looks like some compilers change the pointer alignment if the first byte starts at an odd address. Because mb_ntoh_safe uses pointers slave address and count (number of registers) were not read correctly from the buffer when several modbus slaves were present in network. In this temporary solution pointer aritmetics is replaced by simple 256 multiplication.
bmakuc <blaz.makuc@smarteh.si> [Wed, 27 Nov 2019 14:53:22 +0100] rev 4
Variables start_addr and count were read from query_packet using function mb_ntoh_safe. It looks like some compilers change the pointer alignment if the first byte starts at an odd address. Because mb_ntoh_safe uses pointers slave address and count (number of registers) were not read correctly from the buffer when several modbus slaves were present in network. In this temporary solution pointer aritmetics is replaced by simple 256 multiplication.

Mon, 11 Feb 2019 11:07:01 +0100Setting socket option so that TCP Modbus slave can re-use same port immediately after freeing it
Edouard Tisserant [Mon, 11 Feb 2019 11:07:01 +0100] rev 3
Setting socket option so that TCP Modbus slave can re-use same port immediately after freeing it