Digital Outputs / Ctl Variables - Emerson DSM314 User Manual

User Manual
GFK-1742F
13.5

Digital Outputs / CTL Variables

The eight Digital Outputs in the module (2 per axis) are individually configurable to be either
under host controller control (PLC Control - default) or under Local Logic (DSM) control. If
the Local Logic program writes to a particular Digital_Output variable (refer to Table 15H13-
1 through Table 20H13-6) it must be configured for DSM control. The DSM module will
reject any Local Logic programs that are downloaded with an incorrect Digital Output
configuration. Refer to Chapter 14 for a detailed description on configuring the Digital
Outputs.
CTL01-CTL24 are also individually configurable to have different input sources. Refer to
Chapter 14 for a detailed description of the configuration options. CTL25 through CTL32 are
not configurable and are always under Local Logic Control. The DSM module will reject any
Local Logic programs that are downloaded with an incorrect CTL configuration. For
example, if the Local Logic program has a statement that writes to CTL16 (e.g. CTL16 := 1;),
then CTL16 must be configured as "Local Logic Controlled" in Hardware Configuration.
CTL01 through CTL32 and the Motion program Block Numbers (variables Block_1, Block_2,
Block_3, Block_4 ) can be used to synchronize the Motion Program and the Local Logic
program.
Table 65: Axis 1 Variables
Local Logic Variable Name
FacePlate I/O
Strobe1_Level_1
Strobe2_Level_1
Positive_EOT_1
Negative_EOT_1
Home_Switch_1
Digital_Output1_1 (1)
Digital_Output3_1 (1)
Analog_Input1_1
Analog_Input2_1
Control Variables
Velocity_Loop_Gain_1
Position_Loop_TC_1
Torque_Limit_1
Follower_Ratio_A_1
Follower_Ratio_B_1
Position_Increment_Cts_1 (2)
Reset_Strobe1_1
Reset_Strobe2_1
Enable_Follower_1
Jog_Plus_1
Local Logic Variables
Attribute Size
Read Only Bit Operand
Read Only Bit Operand
Read Only Bit Operand
Read Only Bit Operand
Read Only Bit Operand
Write Only Bit Operand
Write Only Bit Operand
Read Only Signed 16 Bits
Read Only Signed 16 Bits
Read/Write Unsigned 8 Bits
Write Only Unsigned 16 Bits
Write Only Unsigned 16 Bits
Write Only Signed 16 Bits
Write Only Signed 16 Bits
Write Only Signed 16 Bits
Write Only Bit Operand
Write Only Bit Operand
Write Only Bit Operand
Write Only Bit Operand
Chapter 13
Jan 2020
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