# Setup Device

Flexible Memory Configuration

- The DMA-EZCCM-001 can hold up to 2 connected devices
- It allows different data size configurations for better PLC memory allocation
- For multiple readers connected, the size is equal between the two devices
- “Data Block Size Enumeration” in “Data Block Size” byte setups the size of the User/Result Data Arrays
- “Disable Reader 2” in “Data Block Size” Enables/Disables control of the second reader to be used in the logic
- The starting data byte of the second reader depends on the selected Data Block size and is as follows:

Byte Ch1 | Byte Ch2/16 | Byte Ch2/32 | Byte Ch2/64 | Byte Ch2/136 | Byte Ch2/232
0 | 24 | 40 | 72 | 144 | 240

Identify Reader Connection

- Setup Tool automatically broadcasts to find the DMA-EZCCM-001 over the network
- The “Serial error” bit in “Trigger Status” byte indicates when the reader is down or the connection is broken.