CODEL Operation and Maintenance Manual
Issue : A Rev. : 3 Date : 13/11/2018 Ref. : 100351
P a g e | 30
7.2 Address Numbers
Address numbering is delegated to 2 UARTs. (Universal Asynchronous Receiver/Transmitter). The first UART is
for external comms to the display unit on a network. The 2
nd
UART is for internal communication to all
peripheral devices, such as the E-Cell and Vis.
the default address is 1 and should only be changed when required.
The device addressing is as follows:
1: Display
3: E-Cell
4: mA 1
5: mA 2
NOTE: when the device contains 2x mA boards, they are arranged so that the board with the lowest serial
number is set to address 4 and the PCB with the highest set to address 5.
Device addressing:
Device Address: 0x01
Physical device RAM: 0x0000 – 0x01FF
ROM: 0X2000 – 0X23FF
Display offset:
0X0000
RAM: 0x0000 – 0x01FF
ROM: 0X2000 – 0X23FF
Because communications between the interface and the sensor is serial digital, it is necessary for each sensor
to be allocated an address number – the default address is 1 and should only be changed when required.
Device Address: 0x03
Physical device RAM: 0x0000 – 0X03FF
ROM: 0X2000 – 0X23FF
Display offset:
0X0800
RAM: 0X0800 – 0X0BFF
ROM: 0X2800 – 0X2BFF
Device Address: 0x04
Physical device RAM: 0x0000 - 0X03FF
ROM: 0X2000 – 0X23FF
Display offset:
0X0C00
RAM: 0X0C00 – 0X0FFF
ROM: 0X2C00 – 0X2FFF
Device Address: 0x05
Physical device RAM: 0x0000 – 0X03FF
ROM: 0X2000 – 0X23FF
Display offset:
0X0400
RAM: 0X1000 – 0X13FF
ROM: 0X3000 – 0X33FF
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