ProSoft Technology ProLinx S3964R, Driver Manual

Page: 52 / 64

S3964R ♦ ProLinx Gateway Reference
Siemens 3964R Protocol Driver Manual
Page 52 of 64
ProSoft Technology, Inc.
April 14, 2009
ƒ
When using S3964R without RK512 communications mode, Port 0, Port 1,
Port 2, and Port 3 can send or receive standard communication telegrams
(messages).
ƒ
In either mode, 512 bytes is the maximum amount of data transferred per
message
ƒ
Data byte order can be swapped to support different device-specific word
formats
ƒ
Communication activity indications and diagnostic information are available
through LEDs and acknowledgment telegram messages.
6.1.2 Functional Specifications - S3964R
Ports 4 independent RS-232/422 serial application ports
Baud rates Typical: 600, 1200, 2400, 4800, 9600, 19200 bps (available on all
four ports)
Additional Possible: 38400, 57600, 115200 bps (available only on
Port 1, Port 2, and Port 3)
Parity Even, odd, None
Data bits 8
Stop bits 1
Maximum distance RS 232 - 15 cable meters
RS 422 - 1230 cable meters
Maximum Data Transfer 512 bytes per message
6.2 S3964R Error and Status Data
6.2.1 Status Data
Each port has its own status data section in the S3964R module's database. The
following table describes the status section for each port.
Index Description
0 Current Error Code
1 Last Error Code
2 Number of 3964R Requests
3 Number of 3964R Responses
4 Number of 3964R NAK errors sent to communication partner
5 Number of 3964R NAK errors received from communication partner
6 Number of times DLE was not received from the 3964R communication
partner
7 Number of times STX was not received from the 3964R communication
partner
8 Current 3964R driver state code
9 Database block size