A test in EDM requires hardware to run. This hardware is represented as a Spider system, which consists of one or more Spider modules. This article walks through connecting your Spider modules and creating a new Spider system in EDM.

• One or more Spider modules, powered on and connected to the PC's network.
• All modules must be on the same subnet as the PC. See How to Connect the Spider System to the PC for IP configuration details.
• The first module must be set as the “master” (flip the switch to “M”); all other modules are “slaves.”

1. Click Hardware in the top toolbar, or navigate to Setup > Select Hardware.
2. Choose Select 1 module or Select system (1+ modules).
3. Click New system.
4. In the Detected modules section, select each module to add to your system.
5. Set the first module as the master, and all other modules as slaves.
6. Click OK.

If a test is already loaded, you don't need to create a new test to use a different Spider system — you can swap the hardware assigned to the current test using either of the following methods.

Method 1: From Recent Tests

1. Go to Recent Tests.
2. Find the current test, then either:
   • Click the down arrow next to the test's system name, or
   • Right-click the current test's system name.
3. Select Switch System.
4. Choose the replacement system from the list.

Method 2: From Select Hardware

1. Click Hardware in the top toolbar, navigate to Setup > Select Hardware, or click the circle “i” button in the Control Panel (shown when the system is Offline).
2. On the Select system (1+ modules) tab, choose the replacement system from the predefined systems list (instead of clicking New system).
3. Click OK to connect the current test to the selected system.

To manage existing Spider systems, go to Tools > Spider Configuration. If this option is disabled, disconnect from the current Spider system first.

The Spider System Configuration window allows you to:

• Create new Spider systems.
• Rename or delete existing systems.
• Set default systems for tests.
• Configure IP addresses.
• Set up digital I/O.
• Synchronize the Spider's datetime clock with the PC.
• Import and export Spider system configurations as SSK files.

If the PC does not detect your Spider modules:

• Confirm all modules and the PC share the same subnet (first three numbers of the IP address must match).
• Verify connectivity with the ping command in the Command Prompt (e.g., ping 172.0.0.100).
• Disable other network adapters, or raise the network priority of the Spider adapter.
• Check that Ethernet cables/ports are functioning and power adapters are supplying adequate power.

For a full walkthrough of IP setup and troubleshooting, see How to Connect the Spider System to the PC.