diff --git a/webserver/core/lib/iec_std_lib.h b/webserver/core/lib/iec_std_lib.h
index 56fe14b..218ecc1 100755
--- a/webserver/core/lib/iec_std_lib.h
+++ b/webserver/core/lib/iec_std_lib.h
@@ -732,11 +732,8 @@ __ANY(__move_)
 
 
 
-
-
-
-
 #include "iec_std_functions.h"
 #include "iec_std_FB.h"
+#include "openplc_networking.h"
 
 #endif /* _IEC_STD_LIB_H */
diff --git a/webserver/core/lib/openplc_networking.h b/webserver/core/lib/openplc_networking.h
new file mode 100644
index 0000000..610aa05
--- /dev/null
+++ b/webserver/core/lib/openplc_networking.h
@@ -0,0 +1,5 @@
+//client.cpp
+int connect_to_tcp_server(uint8_t *ip_address, uint16_t port);
+int send_tcp_message(uint8_t *msg, size_t msg_size, int socket_id);
+int receive_tcp_message(uint8_t *msg_buffer, size_t buffer_size, int socket_id);
+int close_tcp_connection(int socket_id);