Rockwell Automation 1771-PD PID MODULE (+DU) - Manual (Page 52)

Programming
Chapter 3
3Ć9
dynamic block, loop blocks and status block are listed in Table 3.J,
Figure 3.13 and Figure 3.14 found at the end of section title Word and Bit
Definitions.
Table 3.A
Dynamic Block Words
Word Title Abbreviation
W01
W02
W03
W04
W05
W06
W07
W08
W09
W10
W11
W12
W13
W14
W15
W16
W17
Master Control Word
Control Word
Dynamic Block Start Address
Loop 1 Block Start Address
Set Analog Output 1
Set Point 1
Proportional Gain 1
Bias 1
Set Process Variable 1
Set Feedforward Input 1
Loop 2 Block Start Address
Set Analog Output 2
Set Point 2
Proportional Gain 2
Bias 2
Set Process Variable 2
Set Feedforward Input 2
SET OUT 1
SP1
K
p
1
BIAS 1
SET PV1
SET FFI1
SET OUT 2
SP2
K
p
2
BIAS 2
SET PV2
SET FFI2
W01 Master Control Word. This word initiates all activities in the PID
module from power-up. This word programs the module configuration,
controls the initiation of the block transfer sequences, and can control the
setting of the analog outputs and the contact output. Bits 17 through 00
are defined below and summarized in Figure 3.5.
W01 B17, B16 Block Identifiers. Both bits must be set to 1 to
identify this block as the dynamic block.
W01 B15 Loop Select. [LE] Reset to 0 selects both loop 1 and loop
2. Set to 1 selects loop 1 only. When loop 1 and loop 2 are selected,
all words in the dynamic block are used and both loop blocks must
be programmed. When loop 1 is selected, only words W01 through
W10 of the dynamic block are used and the loop 1 block must be
programmed.
W01 B14 Standard/Expanded Features. [XF], [LE] Reset to 0
selects standard loop features. When the stand loop is selected, loop
1 words W30 through W36 and loop 2 words W50 through W56 are
NOT used by the module. Set to 1 selects expanded loop features