After modifier network connection, I can ping the address of the laser scanner.
 
tienthanh@tienthanh-pc:~$ ping 169.254.193.164
PING 169.254.193.164 (169.254.193.164) 56(84) bytes of data.
64 bytes from 169.254.193.164: icmp_seq=1 ttl=64 time=0.025 ms
64 bytes from 169.254.193.164: icmp_seq=2 ttl=64 time=0.025 ms
64 bytes from 169.254.193.164: icmp_seq=3 ttl=64 time=0.027 ms
64 bytes from 169.254.193.164: icmp_seq=4 ttl=64 time=0.027 ms
64 bytes from 169.254.193.164: icmp_seq=5 ttl=64 time=0.027 ms
64 bytes from 169.254.193.164: icmp_seq=6 ttl=64 time=0.028 ms
64 bytes from 169.254.193.164: icmp_seq=7 ttl=64 time=0.027 ms
64 bytes from 169.254.193.164: icmp_seq=8 ttl=64 time=0.028 ms
64 bytes from 169.254.193.164: icmp_seq=9 ttl=64 time=0.027 ms
64 bytes from 169.254.193.164: icmp_seq=10 ttl=64 time=0.028 ms
64 bytes from 169.254.193.164: icmp_seq=11 ttl=64 time=0.027 ms
^C
--- 169.254.193.164 ping statistics ---
11 packets transmitted, 11 received, 0% packet loss, time 9998ms
rtt min/avg/max/mdev = 0.025/0.026/0.028/0.007 ms

But I still got the error when run LMS100
tienthanh@tienthanh-pc:~$ rosrun LMS1xx LMS100
[ INFO] [1298911023.270612023]: connecting to laser at : 169.254.193.164
[ERROR] [1298911023.270972132]: Connection to device failed


On Mon, Feb 28, 2011 at 3:39 PM, Tien Thanh <nttputus@gmail.com> wrote:
Hi,

Thanks, I got ID address of LMS111 from SOPAS software is 169.254.193.164. But I can't ping it after connect it to my PC
tienthanh@tienthanh-pc:~$ ping 169.254.193.164
PING 169.254.193.164 (169.254.193.164) 56(84) bytes of data.
^C
--- 169.254.193.164 ping statistics ---
57 packets transmitted, 0 received, 100% packet loss, time 56079ms

Of course, it can not connect to ROS
tienthanh@tienthanh-pc:~$ rosrun LMS1xx LMS100
[ INFO] [1298902851.829334744]: connecting to laser at : 169.254.193.164
[ERROR] [1298902872.821389656]: Connection to device failed

I don't think there is any problem with a laser scanner (it works with Labview in Window). And I have no idea why it not works in ROS

Cheers,



On Mon, Feb 28, 2011 at 11:59 AM, Jochen Sprickerhof <ros-users@jochen.sprickerhof.de> wrote:
* Tien Thanh <nttputus@gmail.com> [2011-02-28 11:44]:
> Hi,

Hi,

> After connect laser scanner, I can ping it, and this is my ifconfig
> tienthanh@tienthanh-pc:~$ ifconfig
> eth0      Link encap:Ethernet  HWaddr e0:cb:4e:da:d2:71
>           inet addr:10.33.107.93  Bcast:10.33.107.255  Mask:255.255.252.0
>           inet6 addr: fe80::e2cb:4eff:feda:d271/64 Scope:Link
>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>           RX packets:235218 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:28801 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:1000
>           RX bytes:91400508 (91.4 MB)  TX bytes:3659091 (3.6 MB)
>           Interrupt:28 Base address:0x6000
>
> I set the IP: rosparam set /LMS1xx/host 10.33.107.93

you have to use the IP of the LMS100, not the one of your host ;)

Cheers,

Jochen



--
Tien Thanh Nguyen
Erasmus Mundus Master Program
EU4M - European Union Master in Mechatronics and Micro-mechatronics systems
Hochschule Karlsruhe Technik und Wirtschaft - Germany
Ecole Nationale Superieure de Mecanique et de Microtechniques de Besancon - France
Phone-mobile : +32.(0)499239087
http://www.eu4m.eu



--
Tien Thanh Nguyen