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authorJonathan McCrohan <jmccrohan@gmail.com>2011-11-02 01:32:31 +0000
committerJonathan McCrohan <jmccrohan@gmail.com>2011-11-02 01:32:31 +0000
commitc9d1e4e78a1a13d396806e9b2b71bb8561f2ae3e (patch)
tree33d63c1077529d289c5741fcb3d765a591687342 /modbuslog.c
parentb8216bcb5698ca1aa2d74416c5103d407e846351 (diff)
downloadverteco-c9d1e4e78a1a13d396806e9b2b71bb8561f2ae3e.tar.gz
Modbus logging working.
Diffstat (limited to '')
-rw-r--r--modbuslog.c100
-rw-r--r--modbuslog.cfg20
2 files changed, 59 insertions, 61 deletions
diff --git a/modbuslog.c b/modbuslog.c
index 6a29b9d..6d14ce1 100644
--- a/modbuslog.c
+++ b/modbuslog.c
@@ -18,7 +18,6 @@
*/
// gcc modbuslog.c -o modbuslog `pkg-config --libs --cflags libmodbus libconfig`
-
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
@@ -46,7 +45,7 @@ void minute_check(int signum) {
alarm(60);
}
-void getmac(unsigned char* mac_address) {
+void find_mac(unsigned char* mac_address) {
int s;
struct ifreq ifr;
@@ -75,7 +74,6 @@ int main(int argc, char *argv[]) {
config_t cfg;
//config_setting_t *setting;
- //unsigned char* mac_address;
unsigned char mac_address[6];
const char *modbus_device_address;
@@ -86,11 +84,7 @@ int main(int argc, char *argv[]) {
config_init(&cfg);
- getmac(mac_address);
-
- if (DEBUG) {
- printf("%s\n", mac_address);
- }
+ find_mac(mac_address);
if (!config_read_file(&cfg, CONFIG_FILE)) {
fprintf(stderr, "%s:%d - %s\n", config_error_file(&cfg),
@@ -111,8 +105,9 @@ int main(int argc, char *argv[]) {
}
if (DEBUG) {
- printf("%s %d %c %d %d\n", modbus_device_address, modbus_baud_rate,
- modbus_parity[0], modbus_data_bits, modbus_stop_bits);
+ printf("%s %s %d %c %d %d\n", mac_address, modbus_device_address,
+ modbus_baud_rate, modbus_parity[0], modbus_data_bits,
+ modbus_stop_bits);
}
modbus_t *ctx;
@@ -146,13 +141,21 @@ int main(int argc, char *argv[]) {
int intervalvalue;
config_setting_lookup_int(register_element, "intervalvalue",
&intervalvalue);
- printf("%d", intervalvalue);
+ //printf("%d", intervalvalue);
+
+ int startaddress;
+ config_setting_lookup_int(register_element, "startaddress",
+ &startaddress);
+
+ int numregisters;
+ config_setting_lookup_int(register_element, "numregisters",
+ &numregisters);
const char *intervalunit;
config_setting_lookup_string(register_element, "intervalunit",
&intervalunit);
- printf("%c", intervalunit[0]);
+ //printf("%c", intervalunit[0]);
int intervalduration;
@@ -162,53 +165,48 @@ int main(int argc, char *argv[]) {
intervalduration = intervalvalue * 60;
if (unixtime_min % intervalduration == 0) {
- printf("specified minute. %d %d\n", unixtime_min,
- intervalduration);
- }
-
- printf("%d ", slaveid);
- }
- printf("%d\n", unixtime_min);
- }
-}
+ //printf("specified minute. %d %d\n", unixtime_min,
+ // intervalduration);
-/*
+ ctx = modbus_new_rtu(modbus_device_address, modbus_baud_rate,
+ modbus_parity[0], modbus_data_bits, modbus_stop_bits);
- ctx = modbus_new_rtu(modbus_device_address, modbus_baud_rate, modbus_parity[0], modbus_data_bits, modbus_stop_bits);
+ modbus_set_slave(ctx, slaveid);
+ modbus_set_debug(ctx, DEBUG);
- modbus_set_slave(ctx, SLAVE_ID);
- modbus_set_debug(ctx, DEBUG);
+ if (ctx == NULL) {
+ fprintf(stderr, "Unable to create libmodbus object.\n");
+ //return -1;
+ }
- if (ctx == NULL) {
- fprintf(stderr, "Unable to create libmodbus object.\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, startaddress,
+ numregisters, tab_reg);
- if (modbus_connect(ctx) == -1) {
- fprintf(stderr, "Connection failed: %s\n", modbus_strerror(errno));
- modbus_free(ctx);
- return -1;
- }
+ if (rc == -1) {
+ fprintf(stderr, "ERROR: %s\n", modbus_strerror(errno));
+ //return -1;
+ }
- rc = modbus_read_input_registers(ctx, START_ADDRESS, NUMBER_REGISTERS, tab_reg);
+ 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);
- if (rc == -1) {
- fprintf(stderr, "ERROR: %s\n", modbus_strerror(errno));
- return -1;
- }
+ //return 0;
+ }
- 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;
- }
-
- */
+ //printf("%d ", slaveid);
+ }
+ //printf("%d\n", unixtime_min);
+ }
+}
diff --git a/modbuslog.cfg b/modbuslog.cfg
index 1157a3d..f724e43 100644
--- a/modbuslog.cfg
+++ b/modbuslog.cfg
@@ -3,7 +3,7 @@
cfg_version = 0.99;
modbus = {
- device = "/dev/ttyUSB4";
+ device = "/dev/ttyUSB2";
baud = 19200;
data_bits = 8;
parity = "E"
@@ -14,25 +14,25 @@ register = (
{
slaveid = 1;
registertype = 4;
- startaddress = 2;
- numregisters = 6;
+ startaddress = 0;
+ numregisters = 2;
datatype = "byte";
intervalvalue = 2;
intervalunit = "M";
},
{
- slaveid = 99;
- registertype = 5;
- startaddress = 7;
- numregisters = 8;
+ slaveid = 1;
+ registertype = 4;
+ startaddress = 4;
+ numregisters = 4;
datatype = "word";
intervalvalue = 1;
intervalunit = "M";
},
{
- slaveid = 2;
- registertype = 3;
- startaddress = 4;
+ slaveid = 1;
+ registertype = 4;
+ startaddress = 10;
numregisters = 2;
datatype = "byte";
intervalvalue = 12;