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Appendix K
ES100@ Digital Controller Protocol
The ES100@ Digital Controller Protocol controls in remote mode and reads various settings from the Controller
connected to the Serial Communications Unit/Board via RS-232C or RS-422A/485 cable.
Note Negative values cannot be written. All values must be set as unsigned BCD.
Structure of the Protocol
The structure of the ES100@ Digital Controller Protocol is shown below.
Sequence
No.
Transmission
sequence name
Function Ladder interface
Send word
allocation
Receive word
allocation
250 (00FA) Read event data Reads events 1 to 10 in the variable area. Yes Yes
251 (00FB) Read time signals Reads time signals 1 to 10 in the variable
area.
Ye s Ye s
252 (00FC) Read error detection
data
Reads error groups 1 to 15 in the variable
area.
Ye s Ye s
253 (00FD) Read heater burnout
data
Reads the heater burnout alarm. Yes Yes
254 (00FE) Read PV data Reads PV data in the variable area. Yes Yes
255 (00FF) Read SP data Reads SP data in the variable area. Yes Yes
256 (0100) Read MV Reads the MV in the variable area. Yes Yes
257 (0101) Read control monitor
data
Reads control monitor data (SP, PV, and MV)
in the variable area.
Ye s Ye s
258 (0102) Read adjustment
parameters
Reads adjustment parameters in the parame-
ter area.
Ye s Ye s
259 (0103) Write adjustment
parameters
Writes adjustment parameters in the parame-
ter area.
Ye s N o
260 (0104) Read PID control
parameters 1
Reads PID parameters No. 1 to 4 from the
PID control parameters in the parameter
area.
Ye s Ye s
261 (0105) Read PID control
parameters 2
Reads PID parameters No. 5 to 8 from the
PID control parameters in the parameter
area.
Ye s Ye s
262 (0106) Write PID control
parameters 1
Writes PID parameters No. 1 to 4 from PID
control parameters in the parameter area.
Ye s N o
263 (0107) Write PID control
parameters 2
Writes PID parameters No. 5 to 8 from PID
control parameters in the parameter area.
Ye s N o
264 (0108) Read local SP Reads the local SP in the program parameter
area.
Ye s Ye s
265 (0109) Write local SP Writes local SP in the program parameter
area.
Ye s N o
266 (010A) Read program parame-
ters
Reads local SP, step time, PID No. wait code,
and events 1 to 10 set values in the program
parameter area.
Ye s Ye s
267 (010B) Write program parame-
ters
Writes the local SP, step time, PID No., wait
code, and event 1 to 10 set values in the pro-
gram parameter area.
Ye s N o
268 (010C) Remote setting mode Switches the setting mode to remote setting. Yes No
269 (010D) Local setting mode Switches the setting mode to local setting. Yes No
270 (010E) External setting mode Switches the setting mode to external setting. Yes No