From 6cfbf2dee130cc36a72d57adea0e9c04bb31f620 Mon Sep 17 00:00:00 2001
From: Jonathan McCrohan <jmccrohan@gmail.com>
Date: Wed, 12 Oct 2011 21:50:48 +0100
Subject:  Initial commit

---
 verteco.c | 63 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 63 insertions(+)
 create mode 100644 verteco.c

(limited to 'verteco.c')

diff --git a/verteco.c b/verteco.c
new file mode 100644
index 0000000..a039952
--- /dev/null
+++ b/verteco.c
@@ -0,0 +1,63 @@
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <errno.h>
+
+#include <modbus.h>
+
+#define SLAVE_ID       1
+#define START_ADDRESS       0
+#define NUMBER_REGISTERS       14
+
+#define DEBUG_MODE	0
+
+int main(int argc, char *argv[])
+{
+
+if ( argc != 2 ){
+    return -1;
+}
+
+
+modbus_t *ctx;
+uint16_t tab_reg[64];
+int rc;
+int i;
+
+ctx = modbus_new_rtu(argv[1], 19200, 'E', 8, 1);
+modbus_set_slave(ctx, SLAVE_ID);
+
+modbus_set_debug(ctx, DEBUG_MODE);
+
+if (ctx == NULL) {
+    fprintf(stderr, "Unable to create the libmodbus context\n");
+    return -1;
+}
+
+
+
+if (modbus_connect(ctx) == -1) {
+    fprintf(stderr, "Connection failed: %s\n", modbus_strerror(errno));
+    modbus_free(ctx);
+    return -1;
+}
+
+rc = modbus_read_input_registers(ctx, START_ADDRESS, NUMBER_REGISTERS, tab_reg);
+
+
+if (rc == -1) {
+    fprintf(stderr, "ERROR: %s\n", modbus_strerror(errno));
+    return -1;
+}
+
+
+for (i=0; i < rc; i=i+2) {
+    printf("reg[%d]=%d\n", i, tab_reg[i]+tab_reg[i+1]);
+}
+
+
+modbus_close(ctx);
+modbus_free(ctx);
+
+    return 0;
+}
-- 
cgit v1.2.3