Participant Technical Reference Manual - IESO

3.Dispatch Information
IMO_MAN_0024
217 AGC dispatch messages may be sent in one of two forms:
(1) Dispatch Message Body – Regulation with Range Dispatch Only: will include
the following fields:
Persistent Resource
DISPATCH_TYPE = „RGR‟
Startstop = „Start‟
RESOURCE_ID
REGULATION_RANGE = The regulation range in MW expected
from the resource.
DELIVERY_START_TIME
DELIVERY_STOP_TIME
(2) Dispatch Message Body – Regulation with Range and Fixed Base-Point
Dispatch: will include the following fields:
Persistent Resource
DISPATCH_TYPE = „RGS‟
Startstop = „Start‟
RESOURCE_ID
AMOUNT = The fixed base point in MW that the unit will operate at
while on AGC.
REGULATION_RANGE = The regulation range in MW expected
from the resource.
DELIVERY_START_TIME
DELIVERY_STOP_TIME
218 For details of the Dispatch Message Structures and sample examples of all the
message types, please refer to the “Web Based Message Exchange – Market
Participant‟s Guide” document, which is available on IESO‟s web site (see the
Technical Interfaces page of IESO‟s web site).
3.2.5 Dispatch Message Scenarios
219 Heart beat messages are sent by the IESO to determine whether the market
participant is able to receive dispatch instructions from the IESO.
IESO – Action MP –Response Comment
HEARTOUT HEARTIN The IESO will send a HEARTOUT message
every 60s to check for an active MP message
exchange client. If the IESO does not receive
the HEARTIN response from the client with a
specified period of time (currently configured
to 10s) the MP client is considered out of
service and the Exchange Coordinator be
informed of the problem.
62 Public Issue 21.1 – March 15, 2010 - estimated