Communication DMA-20 ↔ STG-570
Overview
The communication between STG-570 and DMA-20 is made via a CAN bus with a baud rate of 250 kBit/s.
The internal filter will not process CAN messages that do not have the ID 0x7FD.
Pressing a displayed button causes a CAN message to be sent to ID 0x7FC.
Template 0 - Intro Screen
This screen is displayed after power on until a CAN message with the ID 0x7FD is received.
Template 3 - „4NUMBER“
Show Template
CAN-ID:0x7FD
DLC:8 Byte
Byte 0 | Byte 1 | Byte 2 | Byte 3 | Byte 4 | Byte 5 | Byte 6 | Byte 7 |
U8 Tem- plate number 0x03 | I16 Value 1 -32768 … 32767 | I16 Value 2 -32768 … 32767 | U8 Value 3 0 … 255 | U8 Value 4 0 … 255 | U8 Visibility of the con- trols masked with one bit per Control Bit 0: Value1 Bit 1: Value2 Bit 2: Value3 Bit 3: Value4 Bit 4: Bit 5: Bit 6: Bit 7: | ||
Example
Value1: 12345
Value2: 23456
Value3: 234
Value4: 123
Visibility: 0x0F
Value1 (Visible)
Value2 (Visible)
Value3 (Visible)
Value4 (Visible)
CAN-ID: 0x7FD
DLC: 8 Byte
Byte 0 | Byte 1 | Byte 2 | Byte 3 | Byte 4 | Byte 5 | Byte 6 | Byte 7 |
0x03 | 0x39 | 0x30 | 0xA0 | 0x5B | 0xEA | 0x7B | 0x0F |