Motoman_driver with dual Motoman Mh5

asked 2019-06-24 03:18:29 -0500

37 ●19 ●23 ●23

Hello, I have two Motoman mh5 robot, and they are already connected to the same FS100 controller. I use ROS_Kinetic and MotoRosFS_182.out. But when I tried to launch motoman_driver, I got some error of it.

I followed these steps:

roscore
rosparam load `rospack find motoman_mh5_support`/urdf/dual_motoman_mh5/dual_motoman_mh5.urdf robot_description
rosparam set controller_joint_names "[r1_joint_s, r1_joint_l, r1_joint_u, r1_joint_r, r1_joint_b, r1_joint_t,  r2_joint_s, r2_joint_l, r2_joint_u, r2_joint_r, r2_joint_b, r2_joint_t]"
roslaunch motoman_driver robot_multigroup_interface_streaming_fs100.launch robot_ip:=192.168.0.20

In this step

roslaunch motoman_driver robot_multigroup_interface_streaming_fs100.launch robot_ip:=192.168.0.20

I get the errors below:

cyc@cyc-X550JX:~$ roslaunch motoman_driver robot_multigroup_interface_streaming_fs100.launch robot_ip:=192.168.0.20
... logging to /home/cyc/.ros/log/3e360c46-9658-11e9-aed2-9c5c8e1afee7/roslaunch-cyc-X550JX-22607.log
Checking log directory for disk usage. This may take awhile.
Press Ctrl-C to interrupt
Done checking log file disk usage. Usage is <1GB.

started roslaunch server http://cyc-X550JX:41411/

SUMMARY
========

PARAMETERS
 * /robot_ip_address: 192.168.0.20
 * /rosdistro: kinetic
 * /rosversion: 1.12.14

NODES
  /
    joint_state (motoman_driver/robot_state_bswap)
    joint_trajectory_action (motoman_driver/motoman_driver_joint_trajectory_action)
    motion_streaming_interface (motoman_driver/motion_streaming_interface_bswap)

ROS_MASTER_URI=http://localhost:11311

process[joint_state-1]: started with pid [22624]
process[motion_streaming_interface-2]: started with pid [22625]
process[joint_trajectory_action-3]: started with pid [22632]
[ERROR] [1561364152.222744438]: Failed to find topic_list parameter
[ERROR] [1561364152.231102176]: Failed to find topic_list parameter
[ERROR] [1561364152.235351392]: Failed to copy JointData.  Len (12) out of range (0 to 10)
[ERROR] [1561364152.235397456]: Failed to parse position data from JointFeedbackMessage
[ERROR] [1561364152.235424544]: Failed to convert SimpleMessage
[ERROR] [1561364152.235485291]: Failed to copy JointData.  Len (12) out of range (0 to 10)
[ERROR] [1561364152.235505005]: Failed to parse position data from JointFeedbackMessage
[ERROR] [1561364152.235522137]: Failed to convert SimpleMessage
[ERROR] [1561364152.235555953]: Message callback for message type: 2017, not executed
[ERROR] [1561364152.240573440]: Failed to find topic_list parameter
[ERROR] [1561364152.259931804]: Failed to copy JointData.  Len (12) out of range (0 to 10)
[ERROR] [1561364152.259967959]: Failed to parse position data from JointFeedbackMessage
[ERROR] [1561364152.259980652]: Failed to convert SimpleMessage
[ERROR] [1561364152.260358610]: Failed to copy JointData.  Len (12) out of range (0 to 10)
[ERROR] [1561364152.260385853]: Failed to parse position data from JointFeedbackMessage
[ERROR] [1561364152.260411328]: Failed to convert SimpleMessage

Does anyone know how to solve it? Hope you could help me this.

answered 2019-06-24 03:25:53 -0500

gvdhoorn
86574 ●283 ●1432 ●1054 http://cor.tudelft.nl/

updated 2019-06-24 03:49:26 -0500

Have you seen the Creating a Dual-Arm System (Indigo+) page? It's not perfect, but it should show you how to setup a configuration file for a multi-group system.

I would also recommend using a .launch file instead of starting things manually. That will be much more convenient.

The specific errors you show are basically caused by the fact that the driver is unaware of the configuration of your controller.

Edit: partial example (created from memory: I'm away from my computer so I can't test it):

launch file:

<?xml version="1.0"?>
<launch>
  <arg name="robot_ip" default="192.168.0.20" />
  <arg name="controller" default="fs100" />

  <param name="robot_description"
    textfile="$(find motoman_mh5_support)/urdf/dual_motoman_mh5/dual_motoman_mh5.urdf"/>

  <!-- the yaml file could obviously be anywhere -->
  <rosparam command="load" file="$(find motoman_mh5_support)/config/motion_interface.yaml" />

  <include file="$(find motoman_driver)/launch/robot_multigroup_interface_streaming_$(arg controller).launch">
    <arg name="robot_ip" value="$(arg robot_ip)" />
  </include>

  <!-- if you already have one external to this launch file, then don't add this one -->
  <node type="robot_state_publisher" pkg="robot_state_publisher" name="robot_state_publisher" />

</launch>

You may also need a joint_state_publisher to gather and merge all the joint_state topics that the driver publishes, but I can't check right now (and it also depends on your use-case(s)).

the referenced motion_interface.yaml:

topic_list:
  - name: r1 # might have to be switched with the 'ns' key
    ns: mh5
    group: 0
    joints: [r1_joint_s, r1_joint_l, r1_joint_u, r1_joint_r, r1_joint_b, r1_joint_t]
  - name: r2 # might have to be switched with the 'ns' key
    ns: mh5
    group: 1
    joints: [r2_joint_s, r2_joint_l, r2_joint_u, r2_joint_r, r2_joint_b, r2_joint_t]

You'll obviously have to check whether the group: 0 and group: 1 are correct.

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Comments

Thank you! It works like a charm! Now I can enable my robot servos!

I try to plan a motion with moveit rviz, but I got some error and it doesn't move. Here is my controllers.yaml file contents in the moveit_config folder:

controller_list:
  - name: ""
    action_ns: joint_trajectory_action
    type: FollowJointTrajectory
    joints: [r1_joint_s, r1_joint_l, r1_joint_u, r1_joint_r, r1_joint_b, r1_joint_t,r2_joint_s, r2_joint_l, r2_joint_u, r2_joint_r, r2_joint_b, r2_joint_t]

Is it wrong?

A_YIng ( 2019-06-24 04:29:21 -0500 )edit

Well, yes.

The groups defined in the topic_list parameter must be matched by the configuration of MoveIt.

The topic_lists I suggested does not have a single group with all joints. It has two groups, each with the joints of the respective robot. You'll have to update MoveIt's configuration to match.

gvdhoorn ( 2019-06-24 04:33:41 -0500 )edit

After I modified it, I got the same error.

controller_list:
  - name: mh5/r1
    action_ns: joint_trajectory_action
    type: FollowJointTrajectory
    joints: [r1_joint_s, r1_joint_l, r1_joint_u, r1_joint_r, r1_joint_b, r1_joint_t]
  - name: mh5/r2
    action_ns: joint_trajectory_action
    type: FollowJointTrajectory
    joints: [r2_joint_s, r2_joint_l, r2_joint_u, r2_joint_r, r2_joint_b, r2_joint_t]

I tried to surveyed some repos which like these on github, but still can't find the similar one. By the way, should I open a new issue for this?

A_YIng ( 2019-06-24 04:46:52 -0500 )edit

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