Tel to GIC

Communications between the Telescope LIC and the GIC consist three tags, two REAL floating point values, Azimuth and Altitude positions; and an array of 128 BOOL values for various logic values (see below).

Telescope to GIC floating point values

TEL_Alitiude is a user-defined type UDT_SafetyAnalog which consists of the the safety connection status and a single REAL floating point value.

Tag Name	Data Type	Description
TEL_Altitude	UDT_SafetyAnalog
TEL_Altitude.Connection_Status	CONNECTION_STATUS
TEL_Altitude.Data	REAL	Telescope Mount Altitude Position

TEL_Azimuth is a user-defined type UDT_SafetyAnalog which consists of the the safety connection status and a single REAL floating point value.

Tag Name	Data Type	Description
TEL_Azimuth	UDT_SafetyAnalog
TEL_Azimuth.Connection_Status	CONNECTION_STATUS
TEL_Azimuth.Data	REAL	Telescope Mount Azimuth Position

Telescope to GIC bit assignments

MLIC_to_GIC is a user-defined type SAFETY_ARRAY which consists of the the safety connection status and an array of 128 BOOL. Assignments are listed below:

Tag Name	Data Type	Description
MLIC_to_GIC	UDT_SafetyArray
MLIC_to_GIC.Connection_Status	CONNECTION_STATUS
MLIC_to_GIC.Data[0]	BOOL	Telescope Mount Emergency Stop OK
MLIC_to_GIC.Data[1]	BOOL	Telescope Mount PLC I/O OK (LEDstatus=3)
MLIC_to_GIC.Data[2]	BOOL	reserved
MLIC_to_GIC.Data[3]	BOOL	reserved
MLIC_to_GIC.Data[4]	BOOL	Telescope Mount Azimuth Ready
MLIC_to_GIC.Data[5]	BOOL	Telescope Mount Altitude Ready
MLIC_to_GIC.Data[6]	BOOL	Reserved
MLIC_to_GIC.Data[7]	BOOL	Reserved
MLIC_to_GIC.Data[8]	BOOL	Telescope Mount Azimuth Motion Stopped
MLIC_to_GIC.Data[9]	BOOL	Telescope Mount Azimuth at Safe Speed
MLIC_to_GIC.Data[10]	BOOL	Telescope Mount Azimuth CW Limit
MLIC_to_GIC.Data[11]	BOOL	Telescope Mount Azimuth CCW Limit
MLIC_to_GIC.Data[12]	BOOL	Telescope Mount Altitude Motion Stopped
MLIC_to_GIC.Data[13]	BOOL	Telescope Mount Altitude at Safe Speed
MLIC_to_GIC.Data[14]	BOOL	Telescope Mount Altitude Upper Limit
MLIC_to_GIC.Data[15]	BOOL	Telescope Mount Altitude Lower Limit
MLIC_to_GIC.Data[16]	BOOL	Telescope Mount pointed on Sun
MLIC_to_GIC.Data[17]	BOOL	Reserved
MLIC_to_GIC.Data[18]	BOOL	Reserved
MLIC_to_GIC.Data[19]	BOOL	Reserved
MLIC_to_GIC.Data[20]	BOOL	Telescope in M1 Maintenance Position Azimuth
MLIC_to_GIC.Data[21]	BOOL	Telescope in M1 Maintenance Position Altitude
MLIC_to_GIC.Data[22]	BOOL	Telescope in TEOA Maintenance Position Azimuth
MLIC_to_GIC.Data[23]	BOOL	Telescope above TEOA platform limit (>35°)
MLIC_to_GIC.Data[24]	BOOL	Reserved
MLIC_to_GIC.Data[25]	BOOL	Reserved
MLIC_to_GIC.Data[26]	BOOL	Reserved
MLIC_to_GIC.Data[27]	BOOL	Reserved
MLIC_to_GIC.Data[28]	BOOL	M1 Cover Closed
MLIC_to_GIC.Data[29]	BOOL	M1 Cart Jacks Stowed
MLIC_to_GIC.Data[30]	BOOL	M1 Cover permissive
MLIC_to_GIC.Data[31]	BOOL	Reserved
MLIC_to_GIC.Data[32]	BOOL	Telescope Altitude Hazardous Zones Locked
MLIC_to_GIC.Data[33]	BOOL	Telescope Azimuth Hazardous Zones Locked
MLIC_to_GIC.Data[34]	BOOL	Telescope Azimuth Cable Wrap Alignment OK
MLIC_to_GIC.Data[35]	BOOL	Reserved
MLIC_to_GIC.Data[36]	BOOL	OSS Bridge stowed
MLIC_to_GIC.Data[37]	BOOL	OSS Bridge permissive
MLIC_to_GIC.Data[38]	BOOL	M5 Bridge stowed
MLIC_to_GIC.Data[39]	BOOL	M5 Bridge permissive
MLIC_to_GIC.Data[40]	BOOL	Nasmyth Stairs Gates Closed
MLIC_to_GIC.Data[41]	BOOL	Telescope Floor Y+/- Gates Closed
MLIC_to_GIC.Data[42]	BOOL	Telescope Tower Doors Closed
MLIC_to_GIC.Data[43]	BOOL	Telescope Floor Hatch Closed
MLIC_to_GIC.Data[44]	BOOL	Reserved
MLIC_to_GIC.Data[41]-->[127]	BOOL	not used