Rice Lake Allen-Bradley Remote I/O - Manual (Page 16)

12 Remote I/O Installation and Programming Manual
4.0 Block Transfer Commands
The Remote I/O Interface supports block transfer commands for the 520 , 720i , 820i , and 920i indicators. These
commands allow the PLC controller to exchange larger blocks of data with the indicator, such as 32-bit
floating-point values and partial setpoint configuration.
NOTE: Weight data returned by block transfer commands is not valid when the indicator is in setup mode.
Table 4-1 shows the block write and block read commands supported by the Remote I/O Interface.
Table 4-1. Block Transfer Commands
Command Number
Command Name
Block Write
Command
Length
Block Read
Command
Length Decimal Hex
268 0x10C Set Tare Value 4 4
288 0x120 Read Gross Weight 2 4
289 0x121 Read Net Weight 2 4
290 0x122 Read Tare Weight 2 4
291 0x123 Read Piece Count 2 4
293 0x125 Read Current Display 2 4
294 0x126 Read Accumulator 2 4
295 0x127 Read Rate of Change 2 4
296 0x128 Read Peak Value 2 4
302 0x12E Read Gross, Tare, Net 2 8
303 0x12F Read Multiple Weights 4 4–62
304 0x130 Set Setpoint Value 4 2
305 0x131 Set Setpoint Hysteresis 4 2
306 0x132 Set Setpoint Bandwidth 4 2
307 0x133 Set Setpoint Preact 4 2
319 0x13F Set Single Setpoint, All Values 10 2
320 0x140 Read Setpoint Value 2 4
321 0x141 Read Setpoint Hysteresis 2 4
322 0x142 Read Setpoint Bandwidth 2 4
323 0x143 Read Setpoint Preact 2 4
335 0x14F Read Single Setpoint, All Values 2 10
336 0x150 Set Multiple Setpoint Values 4–62 2
337 0x151 Read Multiple Setpoint Values 2 4–62
NOTE: Command lengths expressed as number of words. Number of words required for variable length commands depends on
number of setpoints or scales specified.