Installation manual
Publication 1747-RM001G-EN-P - November 2008
A-4 SLC 5/03 (OS30x), SLC 5/04 (OS40x) and SLC 5/05 (OS50x) Firmware History
OS301, Series A, FRN 8
OS400, Series A, FRN 4
released: April 1995
Enhancements
None
OS302, Series A, FRN 9
OS401, Series A, FRN 5
released: December 1995
Enhancements
• Indirect Addressing
Allows for simplified programming.
• Trigonometric and Exponential Math Functions
Includes SIN, COS, TAN, ASN, ACS, ATN, LN, LOG, ABS, DEG,
RAD, and XPY.
• Compute (CPT) Instruction
Allows for complex math computations.
• Swap (SWP) Instruction
Allows for the exchange of the high and low bytes of a 16-bit word,
providing easier manipulation of ASCII data within the SLC processors.
• Scale with Parameters (SCP) Instruction
Simplifies scaling of analog parameters.
• DF1 Half-duplex Master Protocol
Allows the processor to support SCADA master RTU applications.
• Multi-Point List
Allows for monitoring of any 32 bits from one screen.
• Global Status Flags on DH+ (OS401 only)
Provides for high-speed broadcast to all processors.
• DF1 to DH+ Passthru (OS401 only)
Allows user to connect to the SLC 5/04 processor’s serial port with a
computer and then access any node on the DH+ network, regardless of
the baud rate of the DH+ network.