Omron GI-S series User manual

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GI-S series
How to configure a software IP address with a DHCP server
application
SPD-1809139 Rev.B

Introduction
When you add a GI-S to a network there are three ways to set the default IP address so you can
program the I/O Block.
1) Rotary switches
•Will set the IP address to 192.168.250.x. To do this set the rotary switches to 0xx where xx is the last octet in the
IP address.
2) DHCP
•Set the rotary switches to 000 or 400 (400 if you suspect the unit has an existing programmed IP address)
•Cycle power to the GI-S and it will pick up an address from the switch DHCP (if enabled on the switch)
•Use the switch software to determine what IP address the DHCP software on the switch gave to your device.
3) BOOTP-DHCP
•This is a Rockwell Automation tool that lets you assign a specific IP address to a specific MAC address.
•Set the rotary switches to 000 or 400 (400 if you suspect the unit has an exiting programmed IP address)
Note:
When you program the I/O block using Sysmac Studio you will set the device to a fixed IP address
as part of the setup and the DHCP or BOOTP-DHCP servers will no longer be needed. There is no
way to use Sysmac Studio to set the GI-S IP address without a Safety Controller being connected.
Hence the need for DHCP to get the GI-S on the same network as the Safety Controller.

Preparation
Necessary tools to use BOOTP-DHCP:
BOOTP-DHCP server ver 3.01.00 (Rockwell Automation):
BootP-DHCP allows you to assign a specific IP address to a specific MAC
address.
You can download here (Need to complete Account Registration):
https://rockwellautomation.custhelp.com/app/answers/detail/a_id/19793
Sysmac Studio:
Necessary to store software IP address into non-volatile memory.
Wireshark:
Only for troubleshooting (ex. In case you don’t know MAC address, you can’t
remember stored IP address).
https://www.wireshark.org/download.html

Preparation
Network configuration:
•PLC, target GI-S unit and Sysmac Studio PC must be in a network (accessible
directly) and have same network ID. See two examples below.
Using Port1: Using Port2:
192.168.1.1
DHCP client
(to be 192.168.1.2)
DHCP server
192.168.1.100
192.168.250.1
DHCP client
(to be
192.168.250.2)
DHCP server
192.168.250.100
NOTE:
Refer user’s manual Z400-E1 6-4-1 Setting the IP Address - IP
Addresses for detailed information network ID mechanism.

Step 1: Confirm MAC address of target unit
Confirm the MAC address on the label attached to the back of GI-S unit.
In this case, MAC
address is:
00:00:0A:BE:84:AC

Step 2: Find target unit
Run BOOTP-DHCP server tool and first configure the Network settings. No need to
fill numbers into all boxes. Typical requirement is set Subnet mask to
“255.255.255.0”.
Configure rotary DIP switches to “000” and power on. Wait for the MAC address of
target unit to appear in the list.
NOTE:
If you don’t see the target MAC address in the list, possible causes
are:
•Wrong rotary DIP switches setting.
•Firewall is blocking the BOOTP DHCP server.
•The target unit is already configured to work with software IP
address.
•Wiring issue (No power, Ethernet cable disconnected, etc.)
•Network configuration issue (GI-S is not directly accessible)

Step 3: Assign IP address
Click the line with target MAC address and select “Add relation”. Set the IP address to
assign the target unit. In this example it configured to “192.168.1.2” but any valid
number is available.
When it’s assigned, the IP addresses are shown in table above. At this point, the unit
uses the IP address but it’s not stored in non-volatile memory. If you reboot the unit
it sends DHCP request again.
NOTE:
This table shows the configured list of relationships between MAC
address and IP address.

Step 4: Store IP address
Use Sysmac Studio to store the software IP address to the target unit. In this example,
the safety connection configuration is already complete in the project. Log onto the
PLC and select target unit in Connection Settings, right-click and select “TCP/IP
Settings”. Fill the IP address into above box and click “Transfer”.
If you see the success message, the IP address is stored into non-volatile memory.
The unit works with stored IP address after power cycle.
NOTE:
Refer user’s manual Z400-E1, section 6-4-1 Setting the IP Address -
Built-in EtherNet/IP Port IP Address Settings –IP address setting
procedure - Fixing on the IP address obtained from the DHCP
server when the power is turned ON for detailed procedure.

Procedure for Multiple Targets
When IP addresses need to be assigned to multiple
target units.
8

Step 1: Assign IP addresses with csv file
BOOTP-DHCP server supports .csv file to import relationship
settings. Creating a table for multiple targets in a .csv file saves
time instead of manually assigning IP address one by one.
Click File > Open and import prepared .csv file.
Configure rotary DIP switches to “000” and power on all targets.
Wait for the MAC addresses of targets unit appears on the list
and IP addresses are assigned.

Step 2: Store IP addresses by EIP tool
Use the EIP tool to store IP address into non-volatile memory.
Execute from #1 to #5 to get a list of targets.
3. Enter multicast IP address
2. Select Network
Broadcast
4. Click UDP
EIP tools searches network
and show found targets in
right window.
5. Click a target
The IP address in Station window
becomes selected one.
1. Click List Identity tab
NOTE:
When you set target IP address to
AAA.BBB.CCC.DDD, the multicast IP
address to be AAA.BBB.CCC.255.

Step 3: Store IP addresses by EIP tool
Use the EIP tool to store IP address into non-volatile memory.
Execute from #6 to #9, then IP address is stored.
Repeat from #5 to #9 for all targets.
7. Click Get_Attribute_All
Confirm Status is OK in green
window.
8. Select Stored Value
6. Click 0xF5 TCP/IP tab
9. Click Set_Attribute
Confirm Status is OK in
green window again.

Troubleshooting
In the case where no target device appears in window, the likely reasons are:
- IP address are not assigned correctly by BOOTP-DHCP server.
- Network interface of PC is not configured with IP address in same network address.
- Firewall is blocking communication between PC and target device.
In case error status returns to Set_Attribute, likely reason are:
-Rotary DIP switches set to other than “000”.
- TUNID is already set. Need to clear TUNID with Sysmac Studio in advance. See
appendix.

Appendix

How to delete stored IP address
Refer user’s manual Z400-E1, section 6-4-1 Setting the IP
Address - Built-in EtherNet/IP Port IP Address Settings –To
obtain the IP address from the DHCP server whenever the
power is turned ON, instead of using that stored in the built-in
memory.

How to get the MAC address by Wireshark
1. You’d like to assign IP address by DHCP but don’t know MAC address.
2. Connect target GI-S unit directly, Configure rotary DIP switches to “400” and
power on.
3. Boot Wireshark tool and start monitoring on Ethernet port.
4. Click either of DHCP discover log and click mark.
5. MAC address of the unit sent DHCP discover message is shown in “Client MAC
address”. Confirm it’s Omron device.
NOTE: MAC address is unique and Wireshark will recognize
this device is registered as an Omron device.
Click
Click
MAC address is
displayed here.

How to get a stored IP address by Wireshark
1. You know MAC address is 00:00:0a:be:84:ac but don’t know stored IP address.
2. Directly connect the target GI-S unit, configure the rotary DIP switches to “000”
and power on.
3. Boot the Wireshark tool and start monitoring the Ethernet port.
4. Enter “eth.src == 00:00:0a:be:84:ac” into filter tool bar.
5. Confirm IP address in ARP message, that’s the IP address the unit start to use.
Applying filtering by MAC address
Use MAC address of
your target unit
IP address is
displayed here.