Hello Thomas,
it might be a simple network config problem: the IP address of your virtual interface shouldn't be the same as your field device. Try assigning it something different on the same subnet, e.g. 192.168.127.1/8 and check your routing table is correct
Regards On 08/13/12 22:21, Thomas Bitsky, Jr. wrote:
Hello! I'm new to using EtherLAB. I've got the master installed as a service, and it's communicating to the network fine. However, I'm having trouble getting the EoE feature up and running. I have an Ethernet device in the field with the IP Address 192.168.127.254 that I need to communicate with through a web browser. I have an EL6601 that the master is able to see fine. When I put the network into Operation, the RUN light goes steady. I'm running on Ubuntu 10.04. I have not installed any real-time extensions; I'm just working with EtherLAB right now. If I execute: # ethercat eoe I get a listing for eoe0s7 as a virtual interface, and that it is down. So, I created in /etc/network the file ifcg-eoe0s7 with the following contents: IPADDRESS=192.168.127.254/8 <http://192.168.127.254/8> STARTMODE=auto I restarted the computer. To raise the interface, I enter: # ifconfig eoe0s7 up The virtual interface goes up, and the LINK light on the EL6601 goes solid green. However, I'm unable to ping 192.168.127.254, or get the pages it serves to pop up. So, I did more reading, and I think I need to do some function calls in the program. So, I added to my test program: void send_callback(void *cb_data) { ec_master_t *m = (ec_master_t *) cb_data; sem_wait(&mutex); ecrt_master_send_ext(m); sem_post(&mutex); } /*****************************************************************************/ void receive_callback(void *cb_data) { ec_master_t *m = (ec_master_t *) cb_data; sem_wait(&mutex); ecrt_master_receive(m); sem_post(&mutex); } int main(int argc, char **argv) { ... // setup callbacks for EoE ecrt_master_callbacks(master, send_callback, receive_callback, master); ... } However, it won't build: durability.o: In function `send_callback': /home/tbj/srcroot/durability/src/durability.c:279: undefined reference to `ecrt_master_send_ext' durability.o: In function `main': /home/tbj/srcroot/durability/src/durability.c:321: undefined reference to `ecrt_master_callbacks' This is my makefile: CC = gcc ETHERCAT_TOPDIR = /home/tbj/srcroot/ethercat CFLAGS = -I$(ETHERCAT_TOPDIR)/include -g -O2 LDFLAGS = -L$(ETHERCAT_TOPDIR)/lib/.libs -lethercat -lrt OBJECTS = durability.o durability.exe : $(OBJECTS) $(CC) $(CFLAGS) $(OBJECTS) $(LDFLAGS) -o durability.exe %.o : %.c $(CC) $(CFLAGS) -c $< Can anyone tell me what I'm missing? I feel like I'm one step away from having this working, but I can't find anything else in any documentation that would lead me to the answer. Thanks in advance for any help. T _______________________________________________ etherlab-users mailing list etherlab-users@etherlab.org http://lists.etherlab.org/mailman/listinfo/etherlab-users
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