550 541 04 |
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Channel No. |
Channel name |
Channel description |
0 |
Service channel |
|
1 |
Comm. channel, RS485, P-NET mode or Data mode |
|
2 |
Comm. channel, Light-Link, P-NET mode or Data mode |
|
3 |
Channel for holding application licences (available in DPIs with operating system version 1.15 or higher) |
|
5 |
Program channel for operating system |
|
6 |
Program channel for Process-Pascal |
See Overview, variables outside channels.
The PD 600 DPI is available with 4 different memory versions: Small, Medium, Medium+ and Large. The amount and type of memory for each version is shown in the table.
Type |
RAM *) |
Program FLASH |
Data FLASH |
PD 600 S |
64 Kbytes |
64 Kbytes |
128 Kbytes |
PD 600 M |
480 Kbytes |
512 Kbytes |
1024 Kbytes |
PD 600 M+ |
992 Kbytes |
512 Kbytes |
1024 Kbytes |
PD 600 L |
480 Kbytes |
1024 Kbytes |
2048 Kbytes |
*) 2 Kbytes of RAM reserved for system variables. |
Memory details, Backup battery, LED indicators and real time Clock
The following figure provides a block diagram showing the internal structure of a PD 600 DPI
PD 601x DPI with RS232 Interface
PD 602x DPI with Ethernet LAN Interface
Light-Link communication channel
Memory, backup battery, LED, RTC
DPI Variables Outside Channels