(Optional) Installing Teamwork and Monitoring Communications Cables
- Units of different models and software versions cannot be networked for teamwork.
- Select a monitoring cable connection mode based on the protocol supported by the NMS.
- If the NMS supports the Modbus-RTU protocol, select RS485 monitoring.
- If the NMS supports Modbus-TCP/SNMP, select FE monitoring.
- The teamwork modes include FE teamwork and CAN teamwork. FE teamwork is recommended. FE teamwork support point-to-point communication, long-distance cascading, and group upgrade. If the number of units in a group is greater than 16, FE teamwork needs to be implemented by group. The total length of CAN teamwork cables should be less than or equal to 310 m. Otherwise, the communication quality will be affected.
- The teamwork communications cables should be CAT 5e or higher shielded network cables (cable impedance ≤ 10 m/ohm). Shielded metal RJ45 connectors should be used. The shield layer of the network cables should be reliably connected to the shield layer of the RJ45 connectors to ensure that the shield layers are properly grounded; otherwise, the teamwork networking of the units may fail. If the RJ45 connectors are of poor quality or are not properly crimped, the communication may be abnormal. Use a standard crimping tool to crimp the RJ45 connectors onsite.
- The length of the network cable between adjacent units should be less than or equal to 100 m. Route cables in compliance with local standards. Take appropriate shielding measures, such as using a galvanized pipe or an ELV cable tray, to reduce the impact of electromagnetic interference on teamwork communication.
Preparing a Network Cable
- Crimp a network cable.Figure 4-88 Teamwork communications cable and FE monitoring communications cable
(1) Orange-white
(2) Orange
(3) Green-white
(4) Blue
(5) Blue-white
(6) Green
(7) Brown-white
(8) Brown
Figure 4-89 RS485 monitoring communications cable(4) Blue
(5) Blue-white
Smart Module Networking Scenario
Smart module networking is the networking of in-row smart cooling products using the ECC800 in a smart module.
- Connect teamwork and monitoring communications cables.
Networking
Teamwork
Monitoring
Protocol
MAC_CAN
Modbus-TCP
Figure 4-90 Connecting communications cables
Independent Networking
Select one of the following networking modes according to the actual situation.
FE Teamwork + FE Monitoring
- Connect teamwork and monitoring communications cables.
Networking
FE Teamwork
FE Monitoring
Protocol
MAC_CAN
Modbus-TCP/SNMP
Description
A teamwork network supports a maximum of 16 units.
-
- If the Modbus-TCP/SNMP protocol is used, customers can purchase the NetEco (a LAN switch is required) or a third-party NMS as the monitoring system.
- If the number of units in a group is greater than 16, FE teamwork needs to be implemented by group. For example, if the number of units under teamwork is 18, they can be divided into two groups, for example, 9+9, 16+2, or 10+8.
Figure 4-91 Connecting communications cablesIf the length of a network cable in the FE teamwork is greater than or equal to 100 m, use the group-based ring networking mode.
- Connecting units with odd numbers: Connect the FE_1 port of the unit with an odd number to the FE_2 port of the unit with the next odd number.
- Connecting units with even numbers: Connect the FE_2 port of the unit with an even number to the FE_1 port of the next unit with an even number.
- Connect FE_2 of No. 1 unit and FE_1 of No. 2 unit, and connect the remaining FE_1 and FE_2 of the last two units.
Figure 4-92 FE teamwork group-based ring networking (using 13 units as an example)
FE Teamwork + RS485 Monitoring
- Connect teamwork and monitoring communications cables.
Networking
FE Teamwork
RS485 Monitoring
Protocol
MAC_CAN
Modbus-RTU
Note
A teamwork network supports a maximum of 16 units.
It takes 3 x n seconds to collect data from n units. If the time required for the host to collect data from all units does not meet the performance requirements, group the units.
- If units are not grouped (n = 1), set RS485 monitoring grouping to Enable on the Modbus Settings screen for each unit.
- If units are grouped (n > 1; recommended: n ≤ 4), set RS485 monitoring grouping to Enable on the Modbus Settings screen for the unit with the COM/FE port connected. Retain the default setting (Disable) for other units.
- Connect the COM/FE port on the main control module of the last unit in each group to the RS485 port on the host.
- Customers can purchase the NetEco (an ECC is required) or a third-party NMS as the monitoring system.
- If the number of units in a group is greater than 16, FE teamwork needs to be implemented by group. For example, if the number of units under teamwork is 18, they can be divided into two groups, for example, 9+9, 16+2, or 10+8.
Figure 4-93 Connecting communications cablesIf the length of a network cable in the FE teamwork is greater than or equal to 100 m, use the group-based ring networking mode.
- Connecting units with odd numbers: Connect the FE_1 port of the unit with an odd number to the FE_2 port of the unit with the next odd number.
- Connecting units with even numbers: Connect the FE_2 port of the unit with an even number to the FE_1 port of the next unit with an even number.
- Connect FE_2 of No. 1 unit and FE_1 of No. 2 unit, and connect the remaining FE_1 and FE_2 of the last two units.
Figure 4-94 FE teamwork group-based ring networking (using 13 units as an example)
CAN Teamwork + FE Monitoring
- Connect teamwork and monitoring communications cables.
Networking
CAN Teamwork
FE Monitoring
Protocol
CAN
Modbus-TCP/SNMP
Description
One teamwork network supports a maximum of 32 units. On the Teamwork Settings screen of the display modules of the first and last units, set Enable teamwork CAN resistor to Yes.
-
If the Modbus-TCP/SNMP protocol is used, customers can purchase the NetEco (a LAN switch is required) or a third-party NMS as the monitoring system.
Figure 4-95 Connecting communications cables
CAN Teamwork + RS485 Monitoring
- Connect teamwork and monitoring communications cables.
Networking
CAN Teamwork
RS485 Monitoring
Protocol
CAN
Modbus-RTU
Description
One teamwork network supports a maximum of 32 units. On the Teamwork Settings screen of the display modules of the first and last units, set Enable teamwork CAN resistor to Yes.
It takes 3 x n seconds to collect data from n units. If the time required for the host to collect data from all units does not meet the performance requirements, group the units.
- If units are not grouped (n = 1), set RS485 monitoring grouping to Enable on the Modbus Settings screen for each unit.
- If units are grouped (n > 1; recommended: n ≤ 4), set RS485 monitoring grouping to Enable on the Modbus Settings screen for the unit with the COM/FE port connected. Retain the default setting (Disable) for other units.
- Connect the COM/FE port on the main control module of the last unit in each group to the RS485 port on the host.
- Customers can purchase the NetEco (an ECC is required) or a third-party NMS as the monitoring system.
Figure 4-96 Connecting communications cables
