# Appendix

Possible Network Structures:

Network Structure Example 1:

Network Structure Example 2:

Network Structure Example 3:

##### Daisy Chain – Maximum Number of Connected Modules

Prerequisites:

- Optimized network
- Only DMA-EZCCM-001 modules in the daisy chain, no additional switches, no third-party devices
- Exchange of pure process data, no acyclic data
- Cable length between the DMA-EZCCM-001 modules max. 50 m
- Power chain is not reaching 4 A

Cycle time | Maximum number of DMA-EZCCM-001 modules
1 ms | 21
2 ms | 42

Depending on the amount and type of DataMan Readers connected to DMA-EZCCM-001 the 24 VDC chain might be reduced. Ethernet chain can continue as per specifications above.

The figure below shows a concept of multiple 24 VDC chains, and maintaining a single Ethernet chain:

To define the maximum power chain length refer to the following table:

DataMan Connection | Max. number of EZCCM in Power Chain
Single DataMan 70 Series per DMA-EZCCM-001 | 16
Dual DataMan 70 Series per DMA-EZCCM-001 | 10
Single DataMan 150 / 260 per DMA-EZCCM-001 | 11
Dual DataMan 150 / 260 per DMA-EZCCM-001 | 7
Single DataMan 360 / 370 / 470 with HPIA per DMA-EZCCM-001 | 3
Dual DataMan 360 / 370 / 470 with HPIA per DMA-EZCCM-001 | 1

Note: DataMan 360 / 370 / 470 with HPIL is not supported.