Rockwell Automation Publication 1756-RM003N-EN-P - October 2011 209
Input/Output Instructions (MSG, GSV, SSV, IOT) Chapter 4
Safety Attributes
The Safety Controller object provides safety status and safety signature
information. The SafetyTask and SafetyFaultRecord attributes can capture
information about non-recoverable faults.
See the GuardLogix Controllers User Manual, publication 1756-UM020
.
SerialPort Attributes
The SerialPort object provides an interface to the serial communication port.
Attribute Data Type Instruction
within
Standard
Task
Instruction
within
Safety Task
Description
SafetyLocked SINT GSV None Indicates whether the controller is safety locked or unlocked.
SafetyStatus INT GSV None Specifies the safety status as:
Value Meaning
1000000000000000Safety task OK.
1000000000000001Safety task inoperable.
00000000000000000Partner missing.
00000000000000001 Partner unavailable.
00000000000000010Hardware incompatible.
00000000000000011Firmware incompatible.
SafetySignature
Exists
SINT GSV GSV Indicates whether the safety task signature is present.
SafetySignature
ID
DINT GSV None 32-bit identification number.
SafetySignature String GSV None 32-bit identification number.
SafetyTaskFault
Record
DINT[11] GSV None Records safety task faults.
Attribute Data Type Instruction Description
BaudRate DINT GSV Specifies the baud rate. Valid values are 110, 300, 600, 1200, 2400, 4800, 9600, and
19200 (default).
ComDriverID SINT GSV Specifies the specific driver.
Value Meaning
0xA2 DF1 (default)
0xA3 ASCII
DataBits SINT GSV Specifies the number of bits of data per character.
Value Meaning
7 7 data bits (ASCII only)
8 8 data bits (default)
DCDDelay INT GSV Specifies the amount of time to wait for the data carrier detect (DCD) to become low before
erroring the packet. The delay is in counts of 1 s packets. Default is 0 counter.
Parity SINT GSV Specifies the parity.
Value Meaning
0 No parity (no default)
1 Odd parity (ASCII only)
2 Even parity
RTSOffDelay INT GSV Amount of time to delay turning off the RTS line after the last character has been transmitted.
Valid value 0...32,767. Delay in counts of 20 msec periods. The default is 0 msec.